![case study questions class 8 science chapter 9 xam content](https://xamcontent.com/wp-content/uploads/2024/03/Xam-content.png)
- Friction Class 8 Case Study Questions Science Chapter 9
Last Updated on May 16, 2024 by XAM CONTENT
Hello students, we are providing case study questions for class 8 science. Case study questions are the new question format that is introduced in CBSE board. The resources for case study questions are very less. So, to help students we have created chapterwise case study questions for class 8 science. In this article, you will find case study questions for cbse class 8 science chapter 9 Friction.
Friction | |
Case Study Questions | |
Competency Based Questions | |
CBSE | |
8 | |
Science | |
Class 8 Studying Students | |
Yes | |
Mentioned | |
Table of Contents
![](http://nandemo.space/777/templates/cheerup1/res/banner1.gif)
Case Study Questions on Friction
Question 1:
Read the given passage below and answer the question:
(I) The force required to overcome friction at the instant an object starts moving from rest is a measure of static friction. On the other hand, the force required to keep the object moving with the same speed is a measure of sliding friction. The sliding friction is slightly smaller than the static friction. When one body rolls over the surface of another body, the resistance to its motion is called rolling friction. Rolling reduces friction. It is always easier to roll than to slide a body over another.
Q.1. The following options show arrangement of types of friction according to decreasing order of applied friction. Select the correct order. (a) Rolling > Sliding > Static (b) Static > Rolling > Sliding (c) Sliding > Static > Rolling (d) Static > Sliding > Rolling
Difficulty Level: Easy
Ans. Option (d) is correct. Explanation: Rolling friction is least among all three types because the surface of wheels has minimal contact with the surface on which it rolls, thus minimising friction.
Q.2. In which of the following case one will have to apply maximum force? (a) Riding a bicycle (b) Trying to move a heavy rock from its resting place (c) Swimming in a pool (d) Drilling a hole in a wall
Ans. Option (b) is correct. Explanation: Stationary rock will experience static friction. Static friction is the highest; thus it will require maximum force or efforts to move it from its rest position.
Q.3. Oiling or greasing in machine parts: (a) Increases the friction between the parts (b) Decreases the friction between the parts (c) Both (a) and (b) are correct. (d) None of the above
Ans. Option (b) is correct.
Explanation: Oiling and greasing act as a lubricant. When oil, grease or graphite is applied between the moving part of a machine, a thin layer is formed there and moving surfaces do not directly rub against each other. Interlocking of irregularities is avoided to a great extent. Movement becomes smooth.
Q.4. Why static friction is more than sliding friction?
Ans. The friction is caused by the interlocking of irregularities in the two surfaces. It is obvious that the force of friction will increase if the two surfaces are pressed harder. The force required to overcome friction at the instant an object starts moving from rest is a measure of static friction. On the other hand, the force required to keep the object moving with the same speed is a measure of sliding friction. When the box starts sliding, the contact points on its surface, do not get enough time to lock into the contact points on the floor. So, the sliding friction is slightly smaller than the static friction.
Q.5. Classify the given examples into static, sliding and rolling friction Papers on a table, a box sliding on an inclined plain, car parked on a hill, ball moving on the ground, child playing on slide in a park, tyres of a bus.
Ans. Static Friction: Papers on a table, car parked on a hill. Sliding Friction: A box sliding on an inclined plain, child playing on slide in a park Rolling Friction: Ball moving on the ground, tyres of a bus.
- Sound Class 8 Case Study Questions Science Chapter 10
- Force and Pressure Class 8 Case Study Questions Science Chapter 8
- Reaching the Age of Adolescence Class 8 Case Study Questions Science Chapter 7
- Reproduction in Animals Class 8 Case Study Questions Science Chapter 6
- Conservation of Plants and Animals Class 8 Case Study Questions Science Chapter 5
- Combustion and Flame Class 8 Case Study Questions Science Chapter 4
- Coal and Petroleum Class 8 Case Study Questions Science Chapter 3
Microorganisms: Friend and Foe Class 8 Case Study Questions Science Chapter 2
Crop production and management class 8 case study questions science chapter 1, topics from which case study questions may be asked.
- Learn the concept of friction.
- Understand the factors that affect frictional force.
- Learn the different types of friction.
- Understand the advantages and disadvantages of friction.
- Learn the methods to increase or decrease friction.
- Understand the concept of fluid friction and methods to reduce it.
The force which opposes the relative motion between two surfaces in contact is called friction. Friction is a necessary evil that makes us walk, write, hold things, etc. The liquids and gases also exert opposition forces on objects moving through them. This is called fluid friction.
Frequently Asked Questions (FAQs) on Friction Case Study Questions
Q1: what are case study questions for cbse examinations.
A1: Case study questions in CBSE examinations typically involve scenarios or real-life examples, requiring students to apply their understanding of concepts to solve problems or analyze situations.
Q2: Why are case study questions important for understanding class 8 science chapters?
A2: Case study questions provide a practical context for students to apply theoretical knowledge to real-world situations, fostering deeper understanding and critical thinking skills.
Q3: How should students approach answering case study questions for CBSE?
A3: Students should carefully read the case study, identify the key issues or problems presented, analyze the information provided, apply relevant concepts and principles of friction, and formulate well-supported solutions or responses.
Q4: Are there any resources available online for students to practice case study questions on class 8 science chapters for CBSE exams?
A4: Yes, several educational websites offer case study questions for CBSE students preparing for science examinations. We also offer a collection of case study questions for all classes and subject on our website. Visit our website to access these questions and enhance your learning experience.
Q5: How can students effectively prepare for case study questions on friction for CBSE exams?
A5: Effective preparation strategies include regular revision of concepts, solving practice questions, analyzing case studies from previous exams, seeking clarification on doubts, and consulting with teachers or peers for guidance and support.
Q6: How can teachers incorporate case study questions on friction class 8 science into classroom teaching?
A6: Teachers can integrate case studies into lesson plans, group discussions, or interactive activities to engage students in active learning, promote problem-solving skills, and facilitate a deeper understanding of concepts of friction.
Q7: Why soles of the rubber slippers become slippery after prolonged use?
A7: While walking the slipper’s sole and ground surface experiences friction which causes the sole to wear off.
Q8: What are lubricants? How do they work? Give two examples.
A8: The substances which reduce friction are called lubricants. Example Oil, grease, graphite etc. They work by forming a thin layer between machine parts. As a result, the moving surfaces do not directly rub against each other. Interlocking of irregularities is avoided to a great extent. Movement becomes smooth.
Q9: Will the force of friction come into play, when a rain drop rolls down a glass window pane?
A9: Yes, friction comes into play when two surfaces are in contact, e.g., glass and water in this case.
Q10: While playing tug of war, Preeti felt that the rope was slipping through her hands. Suggest a way out for her to prevent this.
A10: To prevent slipping the rope from her hands, Preeti has to make her hands somewhat non-smooth, so she can rub her hands by introducing the sand between them.
![case study questions class 8 science chapter 9 Friction Class 8 Case Study Questions Science Chapter 9](https://xamcontent.com/wp-content/uploads/2024/03/CBSE-Class-8-4-1024x576.jpg)
Related Posts
![case study questions class 8 science chapter 9 Gurukul of Excellence](https://i0.wp.com/physicsgurukul.com/wp-content/uploads/2018/05/cropped-cropped-capture12.jpg?fit=563%2C550&ssl=1)
Gurukul of Excellence
Classes for Physics, Chemistry and Mathematics by IITians
Join our Telegram Channel for Free PDF Download
Case Study Questions for Class 8 Science Chapter 9 Reproduction in Animals
- Last modified on: 12 months ago
- Reading Time: 4 Minutes
Here we are providing case study questions for CBSE Class 8 Science Chapter 9 Reproduction in Animals.
Case Study Questions
Question 1:
Read the passage carefully and answer the questions that follow-
For the continuity of life, all living things produce organisms of their own kind. This is called reproduction. A special organ system called the reproductive system is responsible for carrying out the process of reproduction in a living body. Although all living things reproduce they do so by different means. There are two types of Reproduction-Asexual and Sexual reproduction. Asexual reproduction requires one parent while Sexual reproduction requires two parents to produce a baby. Asexual reproduction is the simplest form of reproduction and is commonly found in plants and lower animals like starfish, sponges and worms. Most plants and mammals, including human beings, reproduce sexually.
a) What is reproduction? i) Producing fruits ii) Producing young ones of its own kind iii) Producing food iv) All of these
b) What are the two types of reproduction? i) Budding ii) Fragmentation iii) Asexual reproduction iv) Sexual reproduction a. i) b. ii) c. ii&iv d. iii &iv
c) Which type of reproduction involves only one parent? i) Sexual reproduction ii) Asexual reproduction iii) Both of these iv) None of these
d) How do mammals reproduce? i) By sexual reproduction ii) By asexual reproduction iii) By budding iv) All of these
e)Identify the organism which reproduces asexually. i) Shark ii) Sponges iii) Snake iv) Snail
b) iii & iv (Option c)
Related Posts
Category lists (all posts).
All categories of this website are listed below with number of posts in each category for better navigation. Visitors can click on a particular category to see all posts related to that category.
- Full Form (1)
- Biography of Scientists (1)
- Assertion Reason Questions in Biology (37)
- Case Study Questions for Class 12 Biology (14)
- DPP Biology for NEET (12)
- Blog Posts (35)
- Career Guidance (1)
- Assertion Reason Questions for Class 10 Maths (14)
- Case Study Questions for Class 10 Maths (15)
- Extra Questions for Class 10 Maths (12)
- Maths Formulas for Class 10 (1)
- MCQ Questions for Class 10 Maths (15)
- NCERT Solutions for Class 10 Maths (4)
- Quick Revision Notes for Class 10 Maths (14)
- Assertion Reason Questions for Class 10 Science (16)
- Case Study Questions for Class 10 Science (14)
- Evergreen Science Book Solutions for Class 10 (17)
- Extra Questions for Class 10 Science (23)
- HOTS for Class 10 Science (17)
- Important Questions for Class 10 Science (10)
- Lakhmir Singh Class 10 Biology Solutions (4)
- Lakhmir Singh Class 10 Chemistry Solutions (5)
- Lakhmir Singh Class 10 Physics Solutions (5)
- MCQ Questions for Class 10 Science (20)
- NCERT Exemplar Solutions for Class 10 Science (16)
- NCERT Solutions for Class 10 Science (15)
- Quick Revision Notes for Class 10 Science (4)
- Study Notes for Class 10 Science (17)
- Assertion Reason Questions for Class 10 Social Science (14)
- Case Study Questions for Class 10 Social Science (24)
- MCQ Questions for Class 10 Social Science (3)
- Topicwise Notes for Class 10 Social Science (4)
- CBSE CLASS 11 (1)
- Assertion Reason Questions for Class 11 Chemistry (14)
- Case Study Questions for Class 11 Chemistry (11)
- Free Assignments for Class 11 Chemistry (1)
- MCQ Questions for Class 11 Chemistry (8)
- Very Short Answer Questions for Class 11 Chemistry (7)
- Assertion Reason Questions for Class 11 Entrepreneurship (8)
- Important Questions for CBSE Class 11 Entrepreneurship (1)
- Assertion Reason Questions for Class 11 Geography (24)
- Case Study Questions for Class 11 Geography (24)
- Assertion Reason Questions for Class 11 History (12)
- Case Study Questions for Class 11 History (12)
- Assertion and Reason Questions for Class 11 Maths (16)
- Case Study Questions for Class 11 Maths (16)
- Formulas for Class 11 Maths (6)
- MCQ Questions for Class 11 Maths (17)
- NCERT Solutions for Class 11 Maths (8)
- Case Study Questions for Class 11 Physical Education (11)
- Assertion Reason Questions for Class 11 Physics (15)
- Case Study Questions for Class 11 Physics (12)
- Class 11 Physics Study Notes (5)
- Concept Based Notes for Class 11 Physics (2)
- Conceptual Questions for Class 11 Physics (10)
- Derivations for Class 11 Physics (3)
- Extra Questions for Class 11 Physics (13)
- MCQ Questions for Class 11 Physics (16)
- NCERT Solutions for Class 11 Physics (16)
- Numerical Problems for Class 11 Physics (4)
- Physics Formulas for Class 11 (7)
- Revision Notes for Class 11 Physics (11)
- Very Short Answer Questions for Class 11 Physics (11)
- Assertion Reason Questions for Class 11 Political Science (20)
- Case Study Questions for Class 11 Political Science (20)
- CBSE CLASS 12 (8)
- Extra Questions for Class 12 Biology (14)
- MCQ Questions for Class 12 Biology (13)
- Case Studies for CBSE Class 12 Business Studies (13)
- MCQ Questions for Class 12 Business Studies (1)
- Revision Notes for Class 12 Business Studies (10)
- Assertion Reason Questions for Class 12 Chemistry (15)
- Case Study Based Questions for Class 12 Chemistry (14)
- Extra Questions for Class 12 Chemistry (5)
- Important Questions for Class 12 Chemistry (15)
- MCQ Questions for Class 12 Chemistry (8)
- NCERT Solutions for Class 12 Chemistry (16)
- Revision Notes for Class 12 Chemistry (7)
- Assertion Reason Questions for Class 12 Economics (9)
- Case Study Questions for Class 12 Economics (9)
- MCQ Questions for Class 12 Economics (1)
- MCQ Questions for Class 12 English (2)
- Assertion Reason Questions for Class 12 Entrepreneurship (7)
- Case Study Questions for Class 12 Entrepreneurship (7)
- Case Study Questions for Class 12 Geography (18)
- Assertion Reason Questions for Class 12 History (8)
- Case Study Questions for Class 12 History (13)
- Assertion Reason Questions for Class 12 Informatics Practices (13)
- Case Study Questions for Class 12 Informatics Practices (11)
- MCQ Questions for Class 12 Informatics Practices (5)
- Assertion and Reason Questions for Class 12 Maths (14)
- Case Study Questions for Class 12 Maths (13)
- Maths Formulas for Class 12 (5)
- MCQ Questions for Class 12 Maths (14)
- Problems Based on Class 12 Maths (1)
- RD Sharma Solutions for Class 12 Maths (1)
- Assertion Reason Questions for Class 12 Physical Education (11)
- Case Study Questions for Class 12 Physical Education (11)
- MCQ Questions for Class 12 Physical Education (10)
- Assertion Reason Questions for Class 12 Physics (16)
- Case Study Based Questions for Class 12 Physics (14)
- Class 12 Physics Conceptual Questions (16)
- Class 12 Physics Discussion Questions (1)
- Class 12 Physics Latest Updates (2)
- Derivations for Class 12 Physics (8)
- Extra Questions for Class 12 Physics (4)
- Important Questions for Class 12 Physics (8)
- MCQ Questions for Class 12 Physics (14)
- NCERT Solutions for Class 12 Physics (18)
- Numerical Problems Based on Class 12 Physics (16)
- Physics Class 12 Viva Questions (1)
- Revision Notes for Class 12 Physics (7)
- Assertion Reason Questions for Class 12 Political Science (16)
- Case Study Questions for Class 12 Political Science (16)
- Notes for Class 12 Political Science (1)
- Assertion Reason Questions for Class 6 Maths (13)
- Case Study Questions for Class 6 Maths (13)
- Extra Questions for Class 6 Maths (1)
- Worksheets for Class 6 Maths (1)
- Assertion Reason Questions for Class 6 Science (16)
- Case Study Questions for Class 6 Science (16)
- Extra Questions for Class 6 Science (1)
- MCQ Questions for Class 6 Science (9)
- Assertion Reason Questions for Class 6 Social Science (1)
- Case Study Questions for Class 6 Social Science (26)
- NCERT Exemplar for Class 7 Maths (13)
- NCERT Exemplar for Class 7 Science (19)
- NCERT Exemplar Solutions for Class 7 Maths (12)
- NCERT Exemplar Solutions for Class 7 Science (18)
- NCERT Notes for Class 7 Science (18)
- Assertion Reason Questions for Class 7 Maths (14)
- Case Study Questions for Class 7 Maths (14)
- Extra Questions for Class 7 Maths (5)
- Assertion Reason Questions for Class 7 Science (18)
- Case Study Questions for Class 7 Science (17)
- Extra Questions for Class 7 Science (19)
- Assertion Reason Questions for Class 7 Social Science (1)
- Case Study Questions for Class 7 Social Science (30)
- Assertion Reason Questions for Class 8 Maths (7)
- Case Study Questions for Class 8 Maths (17)
- Extra Questions for Class 8 Maths (1)
- MCQ Questions for Class 8 Maths (6)
- Assertion Reason Questions for Class 8 Science (16)
- Case Study Questions for Class 8 Science (11)
- Extra Questions for Class 8 Science (2)
- MCQ Questions for Class 8 Science (4)
- Numerical Problems for Class 8 Science (1)
- Revision Notes for Class 8 Science (11)
- Assertion Reason Questions for Class 8 Social Science (27)
- Case Study Questions for Class 8 Social Science (23)
- CBSE Class 9 English Beehive Notes and Summary (2)
- Assertion Reason Questions for Class 9 Maths (14)
- Case Study Questions for Class 9 Maths (14)
- MCQ Questions for Class 9 Maths (11)
- NCERT Notes for Class 9 Maths (6)
- NCERT Solutions for Class 9 Maths (12)
- Revision Notes for Class 9 Maths (3)
- Study Notes for Class 9 Maths (10)
- Assertion Reason Questions for Class 9 Science (16)
- Case Study Questions for Class 9 Science (15)
- Evergreen Science Book Solutions for Class 9 (15)
- Extra Questions for Class 9 Science (22)
- MCQ Questions for Class 9 Science (11)
- NCERT Solutions for Class 9 Science (15)
- Revision Notes for Class 9 Science (1)
- Study Notes for Class 9 Science (15)
- Topic wise MCQ Questions for Class 9 Science (2)
- Topicwise Questions and Answers for Class 9 Science (15)
- Assertion Reason Questions for Class 9 Social Science (15)
- Case Study Questions for Class 9 Social Science (19)
- CHEMISTRY (8)
- Chemistry Articles (2)
- Daily Practice Problems (DPP) (3)
- Books for CBSE Class 9 (1)
- Books for ICSE Class 10 (3)
- Editable Study Materials (8)
- Exam Special for CBSE Class 10 (3)
- H. C. Verma (Concepts of Physics) (13)
- Study Materials for ICSE Class 10 Biology (14)
- Extra Questions for ICSE Class 10 Chemistry (1)
- Study Materials for ICSE Class 10 Chemistry (5)
- Study Materials for ICSE Class 10 Maths (16)
- Important Questions for ICSE Class 10 Physics (13)
- MCQ Questions for ICSE Class 10 Physics (4)
- Study Materials for ICSE Class 10 Physics (8)
- Study Materials for ICSE Class 9 Maths (7)
- Study Materials for ICSE Class 9 Physics (10)
- Topicwise Problems for IIT Foundation Mathematics (4)
- Challenging Physics Problems for JEE Advanced (2)
- Topicwise Problems for JEE Physics (1)
- DPP for JEE Main (1)
- Integer Type Questions for JEE Main (1)
- Integer Type Questions for JEE Chemistry (6)
- Chapterwise Questions for JEE Main Physics (1)
- Integer Type Questions for JEE Main Physics (8)
- Physics Revision Notes for JEE Main (4)
- JEE Mock Test Physics (1)
- JEE Study Material (1)
- JEE/NEET Physics (6)
- CBSE Syllabus (1)
- Maths Articles (2)
- NCERT Books for Class 12 Physics (1)
- NEET Chemistry (13)
- Important Questions for NEET Physics (17)
- Topicwise DPP for NEET Physics (5)
- Topicwise MCQs for NEET Physics (32)
- NTSE MAT Questions (1)
- Physics (1)
- Alternating Current (1)
- Electrostatics (6)
- Fluid Mechanics (2)
- PowerPoint Presentations (13)
- Previous Years Question Paper (3)
- Products for CBSE Class 10 (15)
- Products for CBSE Class 11 (10)
- Products for CBSE Class 12 (6)
- Products for CBSE Class 6 (2)
- Products for CBSE Class 7 (5)
- Products for CBSE Class 8 (1)
- Products for CBSE Class 9 (3)
- Products for Commerce (3)
- Products for Foundation Courses (2)
- Products for JEE Main & Advanced (10)
- Products for NEET (6)
- Products for ICSE Class 6 (1)
- Electrostatic Potential and Capacitance (1)
- Topic Wise Study Notes (Physics) (2)
- Topicwise MCQs for Physics (2)
- Uncategorized (138)
Test series for students preparing for Engineering & Medical Entrance Exams are available. We also provide test series for School Level Exams. Tests for students studying in CBSE, ICSE or any state board are available here. Just click on the link and start test.
Download CBSE Books
Exam Special Series:
- Sample Question Paper for CBSE Class 10 Science (for 2024)
- Sample Question Paper for CBSE Class 10 Maths (for 2024)
- CBSE Most Repeated Questions for Class 10 Science Board Exams
- CBSE Important Diagram Based Questions Class 10 Physics Board Exams
- CBSE Important Numericals Class 10 Physics Board Exams
- CBSE Practical Based Questions for Class 10 Science Board Exams
- CBSE Important “Differentiate Between” Based Questions Class 10 Social Science
- Sample Question Papers for CBSE Class 12 Physics (for 2024)
- Sample Question Papers for CBSE Class 12 Chemistry (for 2024)
- Sample Question Papers for CBSE Class 12 Maths (for 2024)
- Sample Question Papers for CBSE Class 12 Biology (for 2024)
- CBSE Important Diagrams & Graphs Asked in Board Exams Class 12 Physics
- Master Organic Conversions CBSE Class 12 Chemistry Board Exams
- CBSE Important Numericals Class 12 Physics Board Exams
- CBSE Important Definitions Class 12 Physics Board Exams
- CBSE Important Laws & Principles Class 12 Physics Board Exams
- 10 Years CBSE Class 12 Chemistry Previous Year-Wise Solved Papers (2023-2024)
- 10 Years CBSE Class 12 Physics Previous Year-Wise Solved Papers (2023-2024)
- 10 Years CBSE Class 12 Maths Previous Year-Wise Solved Papers (2023-2024)
- 10 Years CBSE Class 12 Biology Previous Year-Wise Solved Papers (2023-2024)
- ICSE Important Numericals Class 10 Physics BOARD Exams (215 Numericals)
- ICSE Important Figure Based Questions Class 10 Physics BOARD Exams (230 Questions)
- ICSE Mole Concept and Stoichiometry Numericals Class 10 Chemistry (65 Numericals)
- ICSE Reasoning Based Questions Class 10 Chemistry BOARD Exams (150 Qs)
- ICSE Important Functions and Locations Based Questions Class 10 Biology
- ICSE Reasoning Based Questions Class 10 Biology BOARD Exams (100 Qs)
✨ Join our Online JEE Test Series for 499/- Only (Web + App) for 1 Year
✨ Join our Online NEET Test Series for 499/- Only for 1 Year
Leave a Reply Cancel reply
Join our Online Test Series for CBSE, ICSE, JEE, NEET and Other Exams
![case study questions class 8 science chapter 9 Join Telegram Channel](https://i0.wp.com/physicsgurukul.com/wp-content/uploads/2024/02/Blog-Post-Images-12.png?w=740&ssl=1)
Editable Study Materials for Your Institute - CBSE, ICSE, State Boards (Maharashtra & Karnataka), JEE, NEET, FOUNDATION, OLYMPIADS, PPTs
Discover more from Gurukul of Excellence
Subscribe now to keep reading and get access to the full archive.
Type your email…
Continue reading
![case study questions class 8 science chapter 9 Study Rate](https://schools.studyrate.in/wp-content/uploads/2022/07/cropped-cropped-logo1.png)
Class 9 Science Case Study Questions Chapter 8 Motion
- Post author: studyrate
- Post published:
- Post category: class 9th
- Post comments: 0 Comments
Case study Questions in Class 9 Science Chapter 8 are very important to solve for your exam. Class 9 Science Chapter 8 Case Study Questions have been prepared for the latest exam pattern. You can check your knowledge by solving Class 9 Science Case Study Questions Chapter 8 Motion
Join our Telegram Channel, there you will get various e-books for CBSE 2024 Boards exams for Class 9th, 10th, 11th, and 12th.
![case study questions class 8 science chapter 9 Download Books for Boards](https://schools.studyrate.in/wp-content/uploads/2024/01/Untitled-design-3.png)
In CBSE Class 9 Science Paper, Students will have to answer some questions based on Assertion and Reason. There will be a few questions based on case studies and passage-based as well. In that, a paragraph will be given, and then the MCQ questions based on it will be asked.
Motion Case Study Questions With Answers
Here, we have provided case-based/passage-based questions for Class 9 Science Chapter 8 Motion
Case Study/Passage-Based Questions
Case Study 1: Answer the following questions by observing following diagram
![case study questions class 8 science chapter 9](https://i0.wp.com/www.netexplanations.com/wp-content/uploads/2022/02/Case-Study-Questions-Class-9-Science-Motion.png)
(i)What is distance and displacement when the particle moves from point A to B?
(a)distance is equal to the displacement
(b)distance is greater than and equal to the displacement
(c)distance is lesser than and equal to the displacement
(d)none of the above
Answer: (a)distance is equal to the displacement
(ii)What is Displacement when the particle moves from point A to D?
(d) none of the above
Answer: (b) 20km
(iii) What is Displacement when particle moves from point A to C through A-B-C?
(c) 10√2 km
Answer: (c) 10√2 km
(iv) Find distance covered when particle moves in path ABCDA i.e. starts from A and ends at A?
Answer: (c) 40 km
(v) Find Displacement covered when particle moves in path ABCDA i.e. starts from A and ends at A?
Answer: (b) 0km
Case Study 2:
Distance is the length of the actual path covered by an object, irrespective of its direction of motion. Displacement is the shortest distance between the initial and final positions of an object in a given direction. Distance is a scalar quantity. Displacement is a vector quantity. Distance covered can never be negative. It is always positive or zero. Displacement may be positive, negative or zero.
(i) ______________ is the actual path covered by an object. (a) Speed (b) Motion (c) Velocity (d) Distance
Answer: (d) Distance
(ii) _______________ is the shortest distance between the initial and final positions of an object. (a) Displacement (b) Acceleration (c) Distance (d) Motion
Answer: (a) Displacement
(iii) Which of the following is a scalar quantity? (a) Displacement (b) Distance (c) Velocity (d) Acceleration
Answer: (b) Distance
(iv) Distance covered ____________ (a) can never be negative. (b) can never be positive. (c) can never be zero. (d) can be positive or negative.
Answer: (a) can never be negative.
(v) Which of the following is vector quantity? (a) Displacement (b) Velocity (c) Acceleration (d) All of these
Answer: (d) All of these
Case Study 3:
Motion is a fundamental concept in science that involves the change in position of an object with respect to its surroundings. When an object changes its position with time, it is said to be in motion. Motion can be described in terms of various parameters, such as distance, displacement, speed, and velocity. Distance is the total path covered by an object, while displacement is the change in position of an object in a particular direction. Speed is the rate at which an object covers distance, while velocity is the rate of change of displacement with respect to time. Motion can be classified into different types, such as linear motion, circular motion, and periodic motion. Understanding the principles and measurements of motion is essential in analyzing and predicting the behavior of objects in the physical world.
What is motion? a) The change in position of an object with respect to its surroundings b) The total path covered by an object c) The rate at which an object covers distance d) The change in position of an object in a particular direction Answer: a) The change in position of an object with respect to its surroundings
How is displacement different from distance? a) Displacement is the total path covered by an object, while distance is the change in position of an object. b) Displacement is the change in position of an object with respect to its surroundings, while distance is the total path covered by an object. c) Displacement is the rate at which an object covers distance, while distance is the change in position of an object in a particular direction. d) Displacement is the change in position of an object in a particular direction, while distance is the rate of change of displacement with respect to time. Answer: b) Displacement is the change in position of an object with respect to its surroundings, while distance is the total path covered by an object.
What is speed? a) The change in position of an object with respect to its surroundings b) The total path covered by an object c) The rate at which an object covers distance d) The change in position of an object in a particular direction Answer: c) The rate at which an object covers distance
How is velocity different from speed? a) Velocity is the total path covered by an object, while speed is the change in position of an object. b) Velocity is the change in position of an object with respect to its surroundings, while speed is the total path covered by an object. c) Velocity is the rate at which an object covers distance, while speed is the change in position of an object in a particular direction. d) Velocity is the rate of change of displacement with respect to time, while speed is the rate at which an object covers distance. Answer: d) Velocity is the rate of change of displacement with respect to time, while speed is the rate at which an object covers distance.
What are the different types of motion? a) Linear motion and circular motion b) Periodic motion and random motion c) Circular motion and periodic motion d) Random motion and linear motion Answer: a) Linear motion and circular motion
Hope the information shed above regarding Case Study and Passage Based Questions for Class 9 Science Chapter 8 Motion with Answers Pdf free download has been useful to an extent. If you have any other queries about CBSE Class 9 Science Motion Case Study and passage-based Questions with Answers, feel free to comment below so that we can revert back to us at the earliest possible By Team Study Rate
You Might Also Like
Case study questions class 9 economics chapter 3 poverty as a challenge, class 9 maths case study questions of chapter 1 real numbers, class 9 mcq questions for chapter 3 atoms and molecules with answers, leave a reply cancel reply.
Save my name, email, and website in this browser for the next time I comment.
A to Z Classes
Cbse, ncert and icse solution online, class 8 science case study question, case study question class 8 science (cbse / ncert board).
Class 8 Science Case Study Question and Answer: CBSE / NCERT Board Class 8 Science Case Study Question prepared by expert Science Teacher. Students can learn Case Based Question / Paragraph Type Question for NCERT Class 8 Science.
There are total 18 chapter Crop Production and Management, Microorganisms: Friend and Foe
, Synthetic Fibres and Plastics, Materials: Metals and Non-Metals, Coal and Petroleum, Combustion and Flame, Conservation of Plants and Animals, Cell – Structure and Functions, Reproduction in Animals, Reaching the Age of Adolescence, Force and Pressure, Friction, Sound, Chemical Effects of Electric Current, Some Natural Phenomena, Light, Stars and the Solar System, Pollution of Air and Water
For any problem during learning any Case or any doubts please comment us. We are always ready to help You.
CBSE Class 8 Science Case Study Question
- Chapter 1 Crop Production and Management Case Study Question
- Chapter 2 Microorganisms: Friend and Foe Case Study Question
- Chapter 3 Synthetic Fibres and Plastics Case Study Question
- Chapter 4 Materials: Metals and Non-Metals Case Study Question
- Chapter 5 Coal and Petroleum Case Study Question
- Chapter 6 Combustion and Flame Case Study Question
- Chapter 7 Conservation of Plants and Animals Case Study Question
- Chapter 8 Cell – Structure and Functions Case Study Question
- Chapter 9 Reproduction in Animals Case Study Question
- Chapter 10 Reaching the Age of Adolescence Case Study Question
- Chapter 11 Force and Pressure Case Study Question
- Chapter 12 Friction Case Study Question
- Chapter 13 Sound Case Study Question
- Chapter 14 Chemical Effects of Electric Current Case Study Question
- Chapter 15 Some Natural Phenomena Case Study Question
- Chapter 16 Light Case Study Question
- Chapter 17 Stars and the Solar System Case Study Question
- Chapter 18 Pollution of Air and Water Case Study Question
What is Case Study Question?
Ans. At case Study there will one paragraph and on the basis of that concept some question will made. Students have to solve that question.
How many marks will have at case based question?
Most of time 5 questions will made from each case. There will 1 or 2 marks for each question.
Important links:
Copyright © 2024 | WordPress Theme by MH Themes
Talk to our experts
1800-120-456-456
![](http://nandemo.space/777/templates/cheerup1/res/banner1.gif)
Important Questions for CBSE Class 8 Science Chapter 9 - Reproduction in Animals
- Class 8 Important Question
- Chapter 9: Reproduction In Animals
![case study questions class 8 science chapter 9 ffImage](https://seo-fe.vedantu.com/cdn/images/new-header-img/bg2_dw.webp)
Reproduction in Animals Class 8 Important Questions with Solutions: Free PDF Download
To help the students with their exam preparations and to get the important topics easily without any struggle, subject experts at Vedantu, with a lot of research on exam patterns, previous year's question papers, and the latest sample papers issued by the CBSE board, created the important questions for Class 8 Science Chapter 9. Some of the questions frequently asked in previous year's papers in Class 8 are also included in these important questions pdf. So, practising them will prepare students effectively for the exams. These important questions will also familiarise students with the exam's marking scheme and difficulty level.
Vedantu is a platform that also strives to provide free CBSE Solutions (NCERT) and other study materials for students. Maths and Science Students who are looking for better solutions can download Class 8 Maths and Class 8 Science NCERT Solutions to revise the complete syllabus and score more marks in examinations.
Topics Covered In Class 8 Science Chapter 9 Reproduction In Animals
S.No. | Topics |
9.1 | Modes of Reproduction |
9.2 | Sexual Reproduction |
9.3 | Asexual Reproduction |
Class 8 Science Chapter 9 Reproduction in Animals - Highlights
Reproduction is a biological process in which new offspring is produced from their parents.
Modes of Reproduction:
There are two different modes of reproduction, they are:
1. Sexual Reproduction: The process by which a new organism is formed by the fusion of genetic material from the male and female parents. The genetic material is carried out by specialised cells called gametes.
Male Reproductive System: Male reproductive system consists of a pair of testes, urethra, scrotum, and penis.
Testosterone is the male sex organ produced in the testes. It is responsible for the production of secondary sexual characters in males.
Female Reproductive System: Female reproductive system consists of the ovary, uterus, cervix, vagina, fallopian tubes, and endometrium.
Estrogen or oestrogen is the primary sex hormone produced in female ovaries. It is responsible for the production of secondary sexual characters and maintains the menstrual cycle and the development of the female gamete.
2. Asexual Reproduction: It is a type of reproduction that doesn’t involve the fusion of gametes. The produced offspring are unicellular or multicellular and these inherit the exact genes of the parents. The different types of asexual reproduction include Fission, fragmentation, agamogenesis, spore formation, budding, and vegetative reproduction.
What is Fertilisation?
The process of fusion of haploid male and female gametes to form a diploid zygote is called fertilisation. The fertilised ovum is called a zygote. Human fertilisation takes place in the fallopian tube and then the zygote is carried to the uterus where the zygote undergoes multiple numbers of divisions to develop an embryo and the developed embryo grows as a foetus.
The fertilisation process takes place in two ways one is external fertilisation and the other is internal fertilisation.
External Fertilisation: If the fertilisation happens outside the body, it is called external fertilisation.
Amphibians and fishes use this type of fertilisation.
Internal Fertilisation: The process of fertilisation takes place inside the female body, it is called internal fertilisation.
Mammals, birds, and reptiles use this type of fertilisation.
Benefits of Solving CBSE Class 8 Science Chapter 9 Important Questions
Students can get the following benefits when practising Class 8 Science Chapter 9 important questions:
Solving the questions repeatedly is the best way for the students to develop time management skills.
Frequently asked questions in exams are covered in the pdf. Practising those will boost students' confidence level.
Solving various types of questions of this chapter ensures to develop students' problem-solving skills.
Practising the questions repeatedly strengthens students' chapter concepts and will help them to present the answer in the exam in a better way.
How to Practise the CBSE Class 8 Science Chapter 9 Important Questions
Practise the question of Class 8 Science Chapter 9 without a break.
Do not look for an answer while solving the questions. Always try to write the answer on your own first as this will help you to develop problem-solving skills.
Allocate a time limit for solving the questions and try to finish it in that time duration.
After completing it, do self-evaluation first.
Write and learn those questions repeatedly that you find most difficult and attempted wrong in the first attempt.
Extra Questions For Practice
Very short answer type questions.
What are the male and female reproductive organs included?
What is known as Ova?
Define internal fertilisation.
Where does the embryo develop?
What are viviparous and oviparous?
Short Answer Type Questions
Explain IVO or In Vitro fertilisation process.
What is budding?
What is known as Binary Fission?
What are buds?
What is metamorphosis?
Long Answer Type Questions
Explain the importance of reproduction in organisms.
Explain the life cycle of the frog with a diagram.
Referring to the Class 8 Science Chapter 9 Extra Questions helps to increase their confidence during the exam preparation and it is one of the best study materials that can be used for free. All these topics are important not only from the exam point of view but also provide knowledge about the basic topics which we will use often in future studies and in our daily life. Having knowledge of Class 8 Science Chapter 9 Extra Questions will help the students to solve the tricky questions in an easy manner.
![case study questions class 8 science chapter 9 arrow-right](https://www.vedantu.com/cdn/images/seo-templates/arrow-right.png)
FAQs on Important Questions for CBSE Class 8 Science Chapter 9 - Reproduction in Animals
1. Why does the frog lay the egg coverless, whereas Hen lays it with a hard cover according to Chapter 9 Reproduction in Animals of Class 8 Science?
In the case of hen, it reproduces through the process of internal fertilisation. So, in hens, the egg is already fertilised before coming out in the form of an egg. In the case of frogs, external fertilisation takes place in which the egg actually fertilises outside the female body. In the water body, females lay coverless eggs. Later, male deposit their sperm over them. The sperm swims with the help of the tail and fuses with the egg. It is impossible for the sperm to fuse with the eggs if they have hard covering and thus the reproduction will not happen. This is the reason why the frog lays egg coverless and hen lays it with a hard cover.
2. Why are millions of sperms produced?
The reproductive organs of the male include a pair of testes, two sperm ducts, and a penis. Male gametes known as sperms are produced by the testes. Millions of sperm are produced by the testes at a time, out of which only one fuses with the egg. This is the reason millions of sperm are produced to make fertilisation in the female body successful. Each sperm has a head, a middle piece, and a tail and are very small in size. Each sperm is a single cell which has all the usual cell components.
3. What is budding?
Budding is a type of asexual mode of reproduction in which a new organism or new individual is formed from a small part of a single parent. This outgrowth is known as bud. This bud gets separated from the parent’s body on maturation to grow into a new individual. This reproduction process is called budding. For example, through the process of budding, only hydra, yeast, and sponges produce their young ones. But, buds are not separated from their parent’s body in some organisms like sponges and they form a colony and remain attached to the parent's body.
4. A mother gives birth to a baby but the baby has the characteristics of both parents. How?
Sexual reproduction occurs in human beings. Two gametes, the female gamete egg in the mother and male gamete sperm in the father fuse together to form zygotes during fertilisation. So, in the mother’s body, the zygote develops into a body. Due to this, the baby is born by the combination of the genetic material of the two. This is the reason why the baby has characteristics of both the parents even though the mother gives birth.
5. What do you mean by binary fission?
Binary fission is a kind of asexual reproduction in which an organism reproduces itself by dividing into two individuals. In this process, the parent cell divides into two daughter cells in which each daughter cell receives one copy of its parent DNA. They are genetically identical to each other. The identity of the parent is technically lost. For example, this kind of reproduction occurs in single-celled Eukaryotes like the Amoeba and the Paramoecium. To know more about Chapter 9 Reproduction in Animals of Class 8 Science, refer to the notes provided by Vedantu .
Chapterwise Important Questions for CBSE Class 8 Science
Cbse study materials.
Case Study Questions Class 8 Science Crop Production and Management
Case study questions class 8 science chapter 1 crop production and management, cbse case study questions class 8 science crop production and management, case study 1, case study 2, case study 3, case study 4.
Que. 3) (b) Rhizobium bacteria
Case study 5
Que. 5) Answer: In the drip irrigation system, water falls drop by drop directly near the roots. It is considered to be a best technique for watering fruit plants, gardens and trees. It reduces wastage of water and ideal for places with poor availability of water.
Leave a Reply Cancel reply
We have a strong team of experienced teachers who are here to solve all your exam preparation doubts, grassroots democracy – part 2 local government in rural areas class 6 mcq, manipur board class 4 english chapter 15 wake up, it’s me, new learning composite math class 5 chapter 11 measurement solutions, ncert solutions class 6 english poorvi chapter 2 a friend’s prayer.
![case study questions class 8 science chapter 9](https://www.thestudypath.com/wp-content/uploads/2023/02/play-store-3.png)
Reproduction in Animals Class 8 Science Extra Questions and Answers
Reproduction in Animals Class 8 Science Chapter 9 Extra Questions with Answers are provided here. We prepared these extra questions based on the latest NCERT Class 8 Science Book. CBSE Class 8 Science Chapter 9 Reproduction in Animals Extra Questions will help you to properly understand a particular concept of the chapter.
Class 8 Science Chapter 9 Reproduction in Animals Extra Questions
Very short answer type question.
Question 1: Name two animals which reproduce sexually.
Answer: Cow, Elephant
Question 2: Name two animals which reproduce asexually.
Answer: Hydra, Amoeba
Question 3: Which type of reproduction involves gametes?
Answer: Sexual reproduction
Question 4: Which type of reproduction does not involve gametes?
Answer: Asexual reproduction
Question 5: What is another term for a fertilised egg?
Answer: Zygote
Question 6: Name the reproductive process which involves two parents.
Question 7: Name the reproductive process which involves one parent.
Question 8: What type of fertilization takes place in hen?
Answer: Internal fertilization takes place in hen.
Question 9: Name the organs which produce sperms in human.
Answer: The testes produce sperms in human.
Question 10: What are the male gametes in humans called?
Answer: The male gametes in humans are called sperms.
Question 11: What are the female gametes in humans called?
Ans. Female gametes in humans are called ova (eggs).
Question 12: Name the organs which produce female gametes.
Answer: Ovaries produce female gametes.
Question 13: Name the parent sheep of which dolly was a clone.
Answer: Finn Dorsett sheep
Question 14: Where does a fertilized egg (or zygote) develop into a baby?
Answer: A fertilized egg (or zygote) develops into a baby in the uterus.
Question 15: What are the reproductive organs of male?
Answer: The reproductive organs in male include testes, sperm ducts and penis.
Question 16: What term is used for bulges observed on the sides of the body of hydra?
Answer: Buds
Question 17: What is the name given to the fusion of male and female gametes?
Answer: Fertilization is the name given to the fusion of male and female gametes.
Question 18: What are the reproductive organs of female?
Answer: The reproductive organs in the female include ovaries, oviducts and uterus.
Question 19: What is foetus?
Answer: The stage of the embryo in which all the body parts can be identified is called a foetus.
Question 20: In which female reproductive organ does the embryo get embedded?
Ans. The embryo gets embedded in the wall of the uterus for further development.
Short Answer Type Questions
Question 1: What type of asexual reproduction take place in amoeba?
Answer: Amoeba reproduces by the common asexual reproduction method called binary fission.
Question 2: Who cloned Dolly the sheep?
Answer: Dolly was cloned by Ian Wilmut and his colleagues at the Roslin Institute in Edinburgh, Scotland.
Question 3: What purpose does the tail in a sperm serve?
Answer: Tail allows the sperm to become motile, hence helps the sperm to reach female gametes for fusion.
Question 4: What is cloning?
Answer: Cloning is the production of an exact copy of a cell, any other living part, or a complete organism.
Question 5: What are the two modes of reproduction in animals?
Answer: There are two modes by which animals reproduce. These are: (i) Sexual reproduction, and (ii) Asexual reproduction.
Question 6: What are the reproductive organs in humans which produce the gametes?
Answer: The ovary produces female gametes called ova and the testes produce male gametes called sperms.
Question 7: Which life process ensures that a plant or animal species will not disappear from the earth?
Answer: Reproduction is the life process ensures that a plant or animal species will not disappear from the earth.
Question 8: Explain the importance of reproduction in organisms.
Answer: Reproduction is essential for the continuation of a species. It ensures the continuation of similar kinds of individuals, generation after generation.
Question 9: What is an embryo?
Answer: The zygote divides repeatedly to give rise to a ball of cells. The cells then begin to form groups that develop into different tissues and organs of the body. This developing structure is termed as an embryo.
Question 10: Name the technique which is used to help a woman with blocked oviducts to have a baby.
Answer: . IVF or in vitro fertilization (fertilization outside the body) is the technique which is used to help a woman with blocked oviducts to have a baby.
Long Answer Type Questions
Question 1: Describe the process of fertilization in human beings.
Answer: The first step in the process of reproduction is the fusion of a sperm and an ovum. When sperms come in contact with an egg, one of the sperms may fuse with the egg. Such fusion of the egg and the sperm is called fertilization. During fertilization, the nuclei of the sperm and the egg fuse to form a single nucleus. This results in the formation of a fertilized egg or zygote.
Question 2: How does a hydra reproduce?
Answer: Hydra reproduces asexually by the process of budding. A small outgrowth called ‘bud’ is formed on the side of its body. This bud then grows gradually to form a small hydra. And finally the tiny new hydra detaches itself from the body of parent hydra and lives as a separate organism.
![case study questions class 8 science chapter 9 Class 8 Science Chapter 9 Reproduction in Animals Extra Questions image 1](https://www.thestudypath.com/wp-content/uploads/2020/09/Class-8-Science-Chapter-9-Reproduction-in-Animals-Extra-Questions-image-1.png)
Question 3: Give two differences between a zygote and a foetus.
Answer: Differences between a zygote and a foetus
1. The fusion of ovum and sperm is called fertilization. The fertilized egg is called a zygote. | 1. The stage of the embryo in which all the body parts are identifiable is called foetus. |
2. A zygote is a single cellular. | 2. A foetus is a multicellular. |
Question 4: Give two differences between zygote and embryo.
Answer: Differences between zygote and embryo
1. The fusion of ovum and sperm is called fertilization. The fertilized egg is called a zygote. | 1. The zygote divides repeatedly to give rise to an embryo. |
2. A zygote is a single cellular. | 2. An embryo is a multicellular. |
Question 5: Why do fish and frogs lay eggs in hundreds?
Answer: Though these animals lay hundreds of eggs and release millions of sperms, all the eggs do not get fertilized and develop into new individuals. This is because the eggs and sperms get exposed to water movement, wind and rainfall. Also, there are other animals in the pond which may feed on eggs. Thus, production of large number of eggs and sperms is necessary to ensure fertilization of at least a few of them.
Question 6: Explain how chicks are born.
Answer: Internal fertilization takes place in hens also. Soon after fertilization, the zygote divides repeatedly and travels down the oviduct. As it travels down, many protective layers are formed around it. The hard shell that we see in a hen’s egg is one such protective layer. After the hard shell is formed around the developing embryo, the hen finally lays the egg. The embryo takes about 3 weeks to develop into a chick.
Question 7: Define asexual reproduction. Describe two methods of asexual reproduction in animals.
Answer: The type of reproduction in which only a single parent is involved is called asexual reproduction. The two methods of asexual reproduction in animals are:
Budding – In this type of asexual reproduction, a small part of the body of the parent organism grows as a ‘bud’ which then detaches and becomes a new organism. Example- hydra
Binary fission – In this type of asexual reproduction, the parent organism splits (or divides) to form two new organisms. Example – Amoeba reproduces by binary fission by dividing itself into two parts.
Question 8: Differentiate between Viviparous and Oviparous Animals.
Answer: Difference between Viviparous and Oviparous Animals
The animals which give birth to young ones are called viviparous animals. | Those animals which lay eggs are called oviparous animals. |
Examples of viviparous animals are cow, dog, cat, lion, tiger, horse, rabbit etc. | Examples of oviparous animals are butterfly, frog, fish, crow, sparrow, snake, lizard, ostrich etc. |
Question 9: What is the basic difference between asexual and sexual reproduction?
Answer: Difference between asexual and sexual reproduction
1. The type of reproduction in which only a single parent is involved is called asexual reproduction. | 1. Reproduction resulting from the fusion of male and female gametes is called sexual reproduction. |
2. No formation or fusion of gametes occurs. | 2. Gametes are always formed, and fusion also occurs. |
3. No fertilization takes place. | 3. Fertilization takes place. |
Question 10: Differentiate between internal fertilization and external fertilization.
Answer: Difference between internal fertilization and external fertilization
1. Fertilization which takes place inside the female body is called internal fertilization. | 1. Fertilization that takes place outside the female body is called external fertilization. |
2. This is observed in human beings and other animals such as hens, cows and dogs. | 2. This is observed in frogs, fish, starfish, etc. |
Question 11: What is metamorphosis? Give examples.
Answer: The transformation of the larva into adult through drastic changes is called metamorphosis. Commonly known examples of metamorphosis include the process undergone by most insects and the transformation of tadpoles into frogs. The diagram below shows the stages of this change, wherein the small fish-like tadpoles transform into what seems a completely different animal:
![case study questions class 8 science chapter 9 Class 8 Science Chapter 9 Reproduction in Animals Extra Questions image 2](https://www.thestudypath.com/wp-content/uploads/2020/09/Class-8-Science-Chapter-9-Reproduction-in-Animals-Extra-Questions-image-2.png)
Question 12: How does fertilization take place in frog? Or How do frog eggs get fertilized? Or How does fertilization occur in frog?
Answer: During spring or rainy season, frogs and toads move to ponds and slow flowing streams. When the male and female come together in water, the female lays hundreds of eggs. Frog’s egg is not covered by a shell and it is comparatively very delicate. A layer of jelly holds the eggs together and provides protection to the eggs. As the eggs are laid, the male deposits sperms over them. Each sperm swims randomly in water with the help of its long tail. The sperms come in contact with the eggs. This results in fertilization.
Question 13: What is ‘in vitro fertilization’ technique of reproduction? Or What are test-tube babies?
Answer: In some women oviducts are blocked. These women are unable to bear babies because sperms cannot reach the egg for fertilization. In such cases, doctors collect freshly released egg and sperms and keep them together for a few hours for IVF or in vitro fertilization (fertilization outside the body). In case fertilization occurs, the zygote is allowed to develop for about a week and then it is placed in the mother’s uterus. Complete development takes place in the uterus and the baby is born like any other baby. Babies born through this technique are called test-tube babies.
Question 14: How could a single cell become such a big individual?
Answer: Fertilization results in the formation of zygote. The zygote divides repeatedly to give rise to a ball of cells. The cells then begin to form groups that develop into different tissues and organs of the body. This developing structure is termed an embryo. The embryo gets embedded in the wall of the uterus for further development. The embryo continues to develop in the uterus. It gradually develops the body parts such as hands, legs, head, eyes, ears, etc. The stage of the embryo in which all the body parts can be identified is called a foetus. When the development of the foetus is complete, the mother gives birth to the baby.
Question 15: What are the steps involved in sexual reproduction in animals?
Answer: Steps involved in sexual reproduction in animals are:
- The male parent produces male gametes called sperms. Sperm is a single cell with all the usual cell components.
- The female parent produces female gametes called eggs (or ova). Like the sperm, an egg is also a single cell.
- The sperm enters into the egg. The nucleus of sperm fuses with the nucleus of egg cell to form a new cell called zygote.
- The zygote divides repeatedly to form a hollow ball of hundreds of cells which is called embryo.
- Embryo grows and becomes a foetus in which all main body features of the baby animal have formed.
- Foetus grows and develops to form a new baby animal.
At Study Path, you can also learn more about Class 8 Science Chapter 9 Reproduction in Animals by accessing the free exhaustive list of study materials and resources related to the chapter such as NCERT Solutions, Notes, Important Questions, and MCQ.
- New QB365-SLMS
- 12th Standard Materials
- 11th Standard Materials
- 10th Standard Materials
- 9th Standard Materials
- 8th Standard Materials
- 7th Standard Materials
- 6th Standard Materials
- 12th Standard CBSE Materials
- 11th Standard CBSE Materials
- 10th Standard CBSE Materials
- 9th Standard CBSE Materials
- 8th Standard CBSE Materials
- 7th Standard CBSE Materials
- 6th Standard CBSE Materials
- Tamilnadu Stateboard
- Scholarship Exams
- Scholarships
![case study questions class 8 science chapter 9](https://www.qb365.in/materials/asset/images/neet-google-app.png)
CBSE 8th Standard CBSE all question papers, important notes , study materials , Previuous Year questions, Syllabus and exam patterns. Free 8th Standard CBSE all books and syllabus online. Practice Online test for free in QB365 Study Material. Important keywords, Case Study Questions and Solutions. Updates about latest education news and Scholorships in one place.
8th Standard CBSE Subjects
8th standard cbse study materials.
![case study questions class 8 science chapter 9 case study questions class 8 science chapter 9](https://www.qb365.in/studymaterials/assets/img/book.png)
Study Materials for Other CBSE Board Standards
![case study questions class 8 science chapter 9 case study questions class 8 science chapter 9](https://www.qb365.in/studymaterials/assets/img/standard.png)
![case study questions class 8 science chapter 9 cbse logo](https://www.qb365.in/studymaterials/assets/img/qb365-learning-logo.png)
Class VI to XII
Tn state board / cbse, 3000+ q&a's per subject, score high marks.
![case study questions class 8 science chapter 9 cbse students](https://www.qb365.in/studymaterials/assets/img/cbse-banner-2.jpg)
Latest CBSE 8th Standard CBSE Study Material Updates
![](http://nandemo.space/777/templates/cheerup1/res/banner1.gif)
IMAGES
VIDEO
COMMENTS
In this article, you will find case study questions for cbse class 8 science chapter 9 Friction. Table of Contents. Case Study Questions on Friction. Also check. Topics from which case study questions may be asked. Frequently Asked Questions (FAQs) on Friction Case Study Questions. Q1: What are case study questions for CBSE examinations?
Here we are providing case study questions for CBSE Class 8 Science Chapter 9 Reproduction in Animals. Case Study Questions. Question 1: Read the passage carefully and answer the questions that follow-. For the continuity of life, all living things produce organisms of their own kind.
Here, we have provided case-based/passage-based questions for Class 9 Science Chapter 8 Motion. Case Study/Passage-Based Questions. Case Study 1: Answer the following questions by observing following diagram.
Students can learn Case Based Question / Paragraph Type Question for NCERT Class 8 Science. There are total 18 chapter Crop Production and Management, Microorganisms: Friend and Foe.
Get important questions for CBSE Class 8 Science Chapter 9 Reproduction in Animals for free. Download free pdf and brush up on your concepts by solving these important questions.
CBSE Class 9 Case Study Questions Class 9 Science Chapter 8 Motion. Motion Case Study Questions with Solution. 100% FREE Exercise & Practice for CBSE, NCERT and ICSE
Important Case Study Questions for Class 8 Board Exam Students. Here we have arranged some Important Case Base Questions for students who are searching for Paragraph Based Questions Crop Production and Management.
Question 1: Explain the importance of reproduction in organisms. Answer: Reproduction is a biological process through which living organisms produce offspring similar to themselves. Living organisms reproduce to maintain their number and for the continuation of their species.
We prepared these extra questions based on the latest NCERT Class 8 Science Book. CBSE Class 8 Science Chapter 9 Reproduction in Animals Extra Questions will help you to properly understand a particular concept of the chapter.
Free 8th Standard CBSE all books and syllabus online. Practice Online test for free in QB365 Study Material. Important keywords, Case Study Questions and Solutions. Updates about latest education news and Scholorships in one place.