What are the functions of our respiratory system?

The parts of our body that help us to breathe make up our respiratory sysiem.

Our respiratory system:

takes air into our body.

removes air from our body.

Expore
Observe
1. Place a finger below your nostrils. Breathe in and out a few times, Do you feel air moving in cand out?
2. Place your hands on both sides of your chest. Breathe in and out a few times. Do you feel your chest moving when you breathe in and out?

What are the functions of our circulatory system?

Our circulatory system is made up of parts that help to move materials around our body.

Our circulatory system::

carries useful substances to all parts of our body.

carries waste materials away from all parts of our body.

Expore
Observe
Place your palm on the left side of your chest. Can you feel your heart beating?

That's COOL! Our heart is about the size of our fist.