What is the function of our muscular sysiem?

We make use of our muscles when we walk, run and jump. Our muscles are parts of our muscular system.

Our muscular system:
allows us to move different parts of our body.

Expore
Observe
Place your left hand on your right upper arm. Then make your right hand into a tight fist and bend your right arm. Can you feel the muscles in your upper arm?

What is the function of our digestive system?

We eat food to keep us alive. However, our body cannot use the food we eat as it is.

Our digestive system:
breaks down the food we eat into substances that our body can use.