Modeling the Digestive System

Our 2-4th graders did a fun biology experiment today. They modeled the digestive system with some bread, toilet paper tube, water, towel & a bowl.

Bread represents bread.

You chew up the bread into small pieces in your mouth and the bread travels down to the stomach (bowl) through the esophagus (toilet paper tube).

In your mouth you add liquid in the form of saliva or water that you drink.

Your Stomach provides bile (orange liquid) to clean the germs off the food. The stomach also mixes the food together.

The stomach then empties into the Small intestine (towel) which absorbs the liquid.

After some liquid is absorbed, it moves into the large intestine where even more liquid is squeezed out.

The part that is left is what exits the body – poop!

What a fantastic way to illustrate and model the digestive system!

Published by The Greenhouse - FES

The Greenhouse - FES is an elementary school for expatriate missionary children in Yaounde, Cameroon which includes a day school and homeschool support.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s