Dancing Popcorn

Materials:

• water
• plastic cup
• popcorn
• 1 teaspoon
• 1 tablespoon
• Sodium Bicarbonate
• vinegar

What to do:

1. Fill the plastic cup with water until it is ¾ full.
2. Measure half a teaspoon of sodium bicarbonate.
3. Add the Sodium Bicarbonate to the water and stir until it has dissolved.
4. Add 4 kernels of popcorn to the cup.
5. Add 1 tablespoon of vinegar to the cup.
6. Watch closely for at least 2 minutes.



I predict that the kernels will sink but bubbles will be created because of the vinegar and the sodium bicarbonate. The bubbles attach themselves to the kernels and they will float up. Then the bubbles pop and the kernels sink, then they rise, then they sink.

What actually happened was the kernels sank at first but the bubbles were created because of the vinegar and the sodium bicarbonate, then the kernels went up and down.