1

They protect you against infections.

2

There is a lot of calcium in these, they are very strong.

3

They give your ears their shape and act like a shock absorber between bones.

4

They protect you, keep you cool, camouflage you and make you waterproof.

5

They are around millions of tiny air spaces. They have to be thin.

6

They make you move and you eat them (if you are not vegetarian).

7

You are using these to help you work out what type of cells they are!

8

A bull wouldn’t like these but oxygen does.

9

I hope that you can see them clearly.

10

If you have some lunch, you will use these around 3 hours later.

11

Only some of you have these but you all needed at least one.

12

Have you been to the toilet recently? These cells help produce number ones.