Last Updated on October 30, 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 12 Some Natural Phenomena.
| Chapter | Some Natural Phenomena |
| Type of Questions | Case Study Questions |
| Nature of Questions | Competency Based Questions |
| Board | CBSE |
| Class | 8 |
| Subject | Science |
| Useful for | Class 8 Studying Students |
| Answers provided | Yes |
| Difficulty level | Mentioned |
| Important Link | Class 8 Science Chapterwise Case Study |
Case Study Questions on Some Natural Phenomena
Questions
Question 1:
Read the given passage below and answer the question:
Amit was travelling in a car when he saw lightning at some distance. He heard a loud thunder after a few seconds.
Q. 1. What should Amit do immediately to remain safe?
(a) Increase the speed of the car.
(b) Stop the car and remain seated inside.
(c) Stop the car and take shelter inside a building.
(d) Turn the car and travel in the opposite direction.
Difficulty Level: Easy
Ans. Option (b) is correct.
Explanation: Generally, lightning is preceded by thunder which serves as an alert to hide in closed buildings. Therefore when the sound of thunder is heard, rush to a safe place. If you are travelling by vehicle, you should stay inside and keep all the doors and windows closed.
Q. 2. Which of these conditions results in lightning?
(a) Negative and positive charges meeting.
(b) The number of negative charges increasing.
(c) The number of positive charges increasing.
(d) Negative and positive charges moving away from each other.
Difficulty Level: Easy
Ans. Option (a) is correct.
Explanation: Lightning occurs when negative and positive charges meet, producing streaks of bright light and sound. This process is known as electric discharge.
Q. 3. A lightning conductor protects a building from lightning. What is a lightning conductor made of?
(a) Glass
(b) Metal
(c) Wood
(d) Plastic
Difficulty Level: Easy
Ans. Option (b) is correct.
Explanation: Lightning rods are made up of iron or copper, which are good conductors of electricity.
Q. 4. How is lightning useful to us?
(a) It helps in nitrogen fixation and promotes plant growth.
(b) Ozone is formed which prevent ultraviolet rays falling on the earth.
(c) It helps in the evolution of a new species.
(d) All of the above
Difficulty Level: Medium
Ans. Option (d) is correct.
Explanation: All the statements list out the uses of lightning.
Also check
- Light Class 8 Case Study Questions Science Chapter 13
- Some Natural Phenomena Class 8 Case Study Questions Science Chapter 12
- Chemical Effects of Electric Current Class 8 Case Study Questions Science Chapter 11
- Sound Class 8 Case Study Questions Science Chapter 10
- Friction Class 8 Case Study Questions Science Chapter 9
- 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
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Topics from which case study questions may be asked
- Lightning
- The sparks that Greeks knew about
- Electric charges
- Charging by rubbing
- Types of charges and their interactions
- Transfer of charge and Earthing
- The Story of Lightning
- Do’s and don’ts for lightning safety
- Steps to protect yourselves in the event of earthquake
Anything that occurs on its own in nature without any kind of human intervention is called a natural phenomenon. It may include the weather of a place, fog, storms, winds, tides, volcanic eruptions and cyclones etc.
Some natural phenomena such as cyclones, thunderstorms, lightning and earthquakes can be highly destructive to human beings. However, we can protect and prepare ourselves from these natural disasters.
A major earthquake occurred in India on 8 October 2005 in Uri and Tangdhar towns of North Kashmir. Before that a major earthquake occurred on 26 January 2001 in Bhuj district of Gujarat.
Helpful Links for CBSE Class 8 Science Preparation
Frequently Asked Questions (FAQs) on Some Natural Phenomena 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 sound, 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 Some Natural Phenomena 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 Some Natural Phenomena 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 sound.
Q7: Name any two natural calamities except lightning and earthquake?
A7: Winds, Storms and Cyclones
Q8: What are seismic waves?
A8: The tremors produce waves on the surface of the earth. These are called seismic waves.
Q9: What is lightning? What causes lightning?
A9: Lightning is an electric discharge or an electric spark that occurs in nature on a large scale. It is caused by the accumulation of charges in the clouds.
Q10: Define earthing. What is the main purpose of providing earthing in buildings?
A10: The process of transfer of charge from a charged object to earth is called earthing. For our safety, most of the electrical appliances and the mains of the house are connected to earth, so that we can be prevented from getting an electric shock.
