Fizzy Corn... aka density experiments

You can have alot of fun with some water, baking soda, vinegar, and popcorn kernels.

The kids measured 2 Tablespoons of water into a clear cup (at least 8 oz in size), and stirred in 1 Tablespoon of baking soda. Then we counted out 14 popcorn kernels and dropped them into the cup, observing whether they sank or floated.

Then we added 1/4 cup of vinegar, and.....FIZZZZZ. After the fizz dies down we were able to observe the newly formed carbon dioxide bubbles adhering to the popcorn kernels. This lowered their density, allowing them to FLOAT.

Trystan was at kindergarten, so we reapeated the experiment with our little pirate when he came home.

You can find this, and many other fun science experiments in the BackYard Scientist series.
Happy Day, science experiment that was scheduled for Wednesday finally completed! Now let's see about math and lapbooking!