Class 4 Exam  >  Science for Class 4  >  Flashcards: Sources of Energy
Flashcards: Sources of Energy
8 Flashcards
50 videos|90 docs|28 tests

Top Courses for Class 4

FAQs on Flashcards: Sources of Energy Video Lecture - Science for Class 4

1. What are the different sources of energy?
Ans. The different sources of energy include fossil fuels (coal, oil, natural gas), renewable sources (solar, wind, hydroelectric, geothermal), and nuclear energy.
2. How are fossil fuels formed?
Ans. Fossil fuels are formed from the remains of plants and animals that lived millions of years ago. Over time, these organic materials were buried under layers of sediment and heat and pressure transformed them into coal, oil, and natural gas.
3. What are the advantages of using renewable sources of energy?
Ans. The advantages of using renewable sources of energy include being environmentally friendly, sustainable, and reducing greenhouse gas emissions that contribute to climate change.
4. How does nuclear energy work?
Ans. Nuclear energy is produced through a process called nuclear fission, where the nucleus of an atom is split to release energy. This energy is used to heat water, produce steam, and turn turbines to generate electricity.
5. How can individuals reduce their energy consumption at home?
Ans. Individuals can reduce their energy consumption at home by using energy-efficient appliances, turning off lights and electronics when not in use, insulating homes to reduce heating and cooling needs, and using renewable energy sources like solar panels.
50 videos|90 docs|28 tests
Explore Courses for Class 4 exam

Top Courses for Class 4

Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev
Related Searches

practice quizzes

,

Sample Paper

,

Free

,

pdf

,

Viva Questions

,

Flashcards: Sources of Energy Video Lecture | Science for Class 4

,

video lectures

,

Flashcards: Sources of Energy Video Lecture | Science for Class 4

,

past year papers

,

mock tests for examination

,

Flashcards: Sources of Energy Video Lecture | Science for Class 4

,

Extra Questions

,

shortcuts and tricks

,

Previous Year Questions with Solutions

,

Semester Notes

,

Objective type Questions

,

study material

,

MCQs

,

Exam

,

Summary

,

ppt

,

Important questions

;