Super Star Scientist...

Evan!

Experiment:  Dancing Raisins

Objective:  Raisins become buoyant and float up and down when bubbles stick to the sides of them.

Materials: tall clear glass, raisins, water, 1 Tbs of baking soda, and vinegar

Evan, our scientist, had all of his materials ready and his safety goggles and lab coat on.

First, Evan's assistant, Mom, poured a cup of water in the tall, clear glass.  After that, Evan measured out 1 tablespoon of baking soda.

He carefully poured the baking soda into the water.

Next, Evan added several raisins to the water/baking soda mixture.

Then he carefully measured out and added vinegar.

He stirred it...

...and we waited by counting to 30. 

 After counting, the raisins began to dance!!

Conclusion:  Baking soda mixed with vinegar makes carbon dioxide bubbles!  The bubbles make the raisins less dense and float, or dance.  When the bubbles pop, the raisins are more dense.

Great job, Scientist Evan!

That was so much fun and definitely something we can try at home!