What does a stomach and intestines do?

When people eat too much and exercise too little they normally get ...

The clear, salty liquid that you pass through your skin, when you exercise

When you exercise, your ______ get bigger and stronger.

To stay healthy and strong,    especially as a result of exercise

______ makes the different parts of your body work well.

A chemical element that is a gas with no smell or colour, it forms a large part of the air on earth, and is needed by animals and plants to live. When you breathe, you get ________.

What does a heart do?

______ are paired  organs in the chest

A large organ in the body that cleans the blood

two bean-shaped organs in the body that remove waste matter