Dancing Raisins

Materials Needed:

Clear carbonated soda
Clear glass
Raisins

What to Do:

Fill a clear glass with the carbonated soda water.
Pick a child to drop 4 or 5 raisins into the glass.
After about a minute, observe how the raisins move up and down in the glass.
Invite the children to guess why this is happening.
After everyone has had a chance to guess, explain how it is the air bubbles that are moving the raisins.
Display the glass in a place where the children can observe it after the carbonation has ceased.