Energy—How Things Work
Class 5 · The World Around Us · 20 Questions
What will happen if there is no electricity in your house for a day?
Why is it better to use solar or wind energy instead of coal?
Give two examples where you have seen energy being stored.
What is the one thing you can do at home to save energy?
Find out how many kilometres a vehicle travels per litre of petrol or diesel. Ask about different vehicles. How will you compare them?
Look around your home or classroom. List any three objects that use energy and mention their source of energy. For example: Object; Fan → Energy Source: Electricity
What makes these things move, shine, make a sound or get warm and cold?
What would you change in the activity to make the toy move faster or slower?
What happens if you use thinner or thicker rubber bands? Do they sound different?
What do cars and scooters need to keep running?
How is food cooked in your house?
What kind of fuel do you use at home for cooking?
What are the problems using too much wood or coal?
Understanding How Fuel Works - Which diya burns longer? Why?
Understanding How Fuel Works - What is acting as a fuel here?
What are the things in your home that need electricity to work?
What would your day be like if there was no electricity at all?
Place a small damp cloth in the Sun. Keep another damp cloth in the shade. Which one do you think will dry first? Why?
Have you ever seen papads being dried in the sunlight and clothes hung out to dry?
Can you think of more examples where we use the Sun, the wind or the flowing water?