Class 5 · No. 11 · Energy: how things work0%
Class 5 · Science · No. 11

Energy: how things work

Around us, things move, light up, make sounds, and get warmer or cooler. Something makes all this happen: we call it energy. In this chapter you will fly a balloon rocket, light two diyas, and bring electricity to a village using the Sun, the wind and flowing water.

Think about it

A fan turns, a bulb shines, a bell rings and water gets warm in the Sun. What makes all of this happen?

In this chapter
  1. §1What energy does
  2. §2Food, fuel and electricity
  3. §3Sun, wind and water
  4. ★Practice: 8 questions
  5. ◆Olympiad challenge: 4 questions
  6. ✓Recap: remember this
Class 5 plan

This chapter opens with the Class 5 plan

One chapter in every class is free to try. The rest of Class 5, Math and Science, opens with a plan for the year.

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Plate IEnergy: how things work