Transcript The Poop Labx

The Digestive System
A “Poop” Lab
materials
6 funnels/cardboard tubes
 6 droppers
 Cups
 Food
 Food coloring
 Bags
 Panty hose
 Paper towels

Let’s make poop!

In your group, mash the food in your cup
with your utensil

Add couple of drops of water

What do you think this represents?
Step 1: The Mouth

Digestion begins in the mouth

Saliva (spit) contains an enzyme called
amylase which starts breaking down the
food.
Making poop continued

Funnel the food in your cup into your
cardboard tube
One person needs to push the food
down the cardboard into the baggy
 Knead your baggy

What does the cardboard represent? The
bag?
Step 2: The Stomach

Pushing food down the esophagus is called
peristalsis

Your stomach breaks down food by churning
and using enzymes, stomach acid, and mucus. The
new mixture is called chyme.

The gall bladder creates bile which breaks
down fat

Add food coloring to the mixture to represent
these 3 things!
Making poop…

Push the mixture in the baggy to the
corner

Add green food coloring (Bile)

Your mixture is now called chyme

Cut a hole in the corner and pour into
the hose (over the paper towels!)
Step 3: The Small Intestine

Your food has now entered the small
intestine!
Nutrients are now taken through the villi
 Blood vessels send it to the body

Making poop…

Set the small intestine on a paper towel

What does the paper towel do?

What does this represent?
Step 4: The Large Intestine

Here, water is drained from the excess
waste

If there is not enough time for water to
be absorbed-diarrhea

Too much water absorbed-constipation
Step 5:

Cut a hole in the panty hose. Squeeze the
remaining contents out on your paper
towel.

And we have…..