WE MADE A STOMACH!

WE LEARNED THAT THE WALL OF OUR STOMACH AND THE JUICES IN OUR STOMACH ARE PART OF THE DIGESTION PROCESS.

WE MADE A STOMACH TO SEE HOW THIS PROCESS WORKS!

HERE'S WHAT WE USED:

One ziploc bag
A couple of crackers or a piece of bread
One cup of orange juice OR lemon juice

HERE'S WHAT WE DID:
The bag is going to be the stomach!
First break the crackers or the bread into pieces and drop them into the bag. Your hands will be acting like the mouth that breaks the food into little pieces.
Second, pour a little orange juice into the bag to act as the "digestive juices" in your stomach.
Observe what happens to the crackers or bread. Is it getting soft?
Now squeeze the bag for one minute. Your hands are now acting like the stomach walls that squeeze the food you eat.