Chapter 3

Digestion

Digestion is how our body breaks food down so we can use it.

What is digestion?

Digestion is the way our body breaks food into tiny bits. Then the body can take in the good parts to give us energy and help us grow.

The simple steps

  • We bite and chew food with our teeth.
  • We swallow, and food goes down to the stomach.
  • The stomach breaks food into a soft mush.
  • The body keeps the useful parts and removes the waste.

Key idea

Digestion starts in the mouth and goes on in the stomach. It changes food into small bits our body can use.

Example

You chew rice into small bits, swallow it, and your stomach breaks it down even more.

Remember

  • Chew food well before swallowing.
  • Digestion begins in the mouth.
  • The stomach helps break food down.

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