Energy 1

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Types of Energy

In science, we say that energy is the ability to do work.

We need energy to do all the things we do.

Reading a book needs energy.

Running needs energy.

Riding a bicycle needs energy.

Listening to music needs energy.

Even sleeping needs energy.

Everything that happens in the world involves movement and for something to move, energy is required.

If something takes energy in, then it also gives energy out.

A light bulb can get energy from the mains electricity supply.				The bulb gives energy back as light and as heat.

A person riding a bicycle gets their energy from the food they eat.				Energy is given out as sound and as heat.