Inflating Conversation Hearts
Materials
An empty bottle
4 Alka Seltzer tablets
1/2 cup water
Balloons
Sharpie
Directions
Break two of Alka Seltzer tablets into small pieces and drop them into the bottom of the bottle
Use Sharpie to write conversation heart messages on the balloons
Pour water into the bottle
Stretch the mouth of the balloon place it over the rim of the bottle.
adapted from Playdough Plato