Which organ helps us breathe?

What gives us energy to work and play?

Which life process helps living beings get energy from food?

What do plants take in to make food?

Which green pigment helps plants make food?

What do humans use to break down food in the mouth?

Which part of the body pumps blood?

How do plants make their own food?

Which waste product do humans release while breathing out?

Which part of the body removes liquid waste?