Question

Place a cracker in a baggie.

2. Crush the cracker up using your fingers

What step in digestion does this represent?


3. Add a splash of water and continue to combine the mixture.

What does the water represent in the digestion process?
Disgetion

4. Push the mixture to one end of the baggie.

5. Add a drop of food coloring to the mixture combine it until well-mixed.

What does the food coloring represent in the digestion process?

6. Push the food back and forth, corner to corner, in the baggie.

7. Poke a two or three holes into the baggie and squeeze out as much fluid as you can.

Which part of the digestion system is this action representing?


What does the remaining mixture in the baggie represent?

Answer 1

Answer

2. Chewing

3.saliva

5.hydrochloric acid

7.small intestine