This is a great experiment that i use when teaching my science class.
Step 1: Materials
An empty soda bottle
Measuring table spoon
Step 2: Pour the Peroxide
Then pour it into the soda bottle.
Step 3: Food Coloring
Step 4: Add Dishsoap
Step 5: Shake It Up
Step 6: Add the Yeast
Then pour warm water in the cup as well.
Step 7: Mix It Up
(Note: I transferred the mixture to a larger cup for easier mixing)
Step 8: Ready for Action
Make sure to do this outside because it can get messy.
ATTN: The yeast i used was a year old, and was not as active as a new package of yeast would usually be. So in that case it was not as foamy as it should have been. i put a picture of what it usually looks like at the bottom.