Watch raisins magically dance up and down in a glass of soda! You will learn how carbon dioxide bubbles attach to the raisins to lift them up like tiny balloons.

Tools

• clear drinking glass or jar

Materials

• clear carbonated soda or sparkling water (12 oz)
• raisins (10-15 pieces)

Safety

• Adult supervision recommended when handling glassware to prevent breakage.
• Ensure raisins are not a choking hazard for very young children.

Steps

1. Pour the clear carbonated soda or sparkling water into the clear glass, filling it about 3/4 of the way to the top.
2. Observe the bubbles forming and rising to the surface of the liquid.
3. Carefully drop 10-15 raisins into the glass one by one.
4. Wait a few moments for the raisins to sink to the bottom.
5. Watch as the carbon dioxide bubbles attach to the rough surface of the raisins, lifting them to the top.
6. Observe the raisins 'pop' at the surface as the bubbles burst, causing them to sink back down and repeat the process.