Dancing Raisins

Dancing Raisins: Carbon dioxide gas dissolved in soft drinks gives them their fizz. You can use the carbon dioxide fizz from a soft drink to make raisins dance. For this experiment you will need: a can of colorless soda (e.g., 7-Up or Sprite) a tall, clear glass or plastic cup several raisins (fresh raisins work the best) Method: Pour the can of soda into the tall glass. Notice the bubbles coming up from the bottom of the glass. The bubbles are carbon dioxide gas released from the liquid. Drop 6 or 7 raisins into the glass. Watch the raisins for a few seconds. Describe what is happening to the raisins. Do they sink or float? Keep watching; what happens in the next several minutes? Have a look at our photos and our videos to see the children in 2nd Class doing this experiment.