NATURAL SCIENCE UNIT 1 part 2

RESPIRATION:

Our body needs oxygen.

Oxygen is a gas.


We breathe oxygen into our lungs.


CIRCULATION:

The heart pumps oxygen to the rest of the body.


DIGESTION:




We chew the food with our teeth.


We taste the food with our tongue.


The food goes to our stomach where the juices break it down.


The food goes to the small intestine and the body absorbs the nutrients it needs.


The things we don't need go through to the large intestine and then... we go to the bathroom!