First experiment - Acetic Acid mixed with Sodium Bicarbonate
Our reaction certainly looked like a wizard's potion. We just used 1/2 a cup of vinegar as our acid and 1 teaspoon of baking soda. The result...Carbon Dioxide! The girls loved to see it bubble up. We talked about how the vinegar and baking soda were in a "duel" with one another to try to neutralize each other, resulting in the bubble reaction of carbon dioxide.
Second experiment - Making a Polymer
SLIME! The girls had a great time making this. It was very easy with a borax and water solution mixed with a glue and water solution. The girls have played with it all afternoon. They also love seeing it take shape to anything. They've had fun stretching it and seeing it shape itself. We got our directions from http://chemistry.about.com/od/chemistryactivities/ss/slimerecipe_4.htm.
Third experiment - Walking Water
Easy as it looks! We added a pigmentation agent to the water - yep that's food coloring, just used fancy names today. ;) And the siphoning begins! It takes a long time, but its really cool to see the water go from one glass to the other.
Visit last year's October blog post here!