Materials:
popcorn
milk or a different liquid
2 cups that are the same size
Directions:
Get out two glasses that are the exact same and filled one with milk and one with popcorn.
Slowly placed all the popcorn into the milk
The goal is to get all the popcorn into the milk without making the milk run over the side.
Good Luck!
Extension:
You could try different liquids
Try adding two cups of popcorn into one cup of liquid