Jack loves science experiments. We did two chemical reaction experiments. The first one was to show what oxidation to metals looks like and why the statue of liberty is turning green. Our first picture shows the shiny brand new pennies, the second picture is what they look like after 24 hours in vinegar.
The second chemical reaction is fun with food colored vinegar poured over baking soda. This was Jack's favorite.
The third experiment was the paper towel shoved down in the bottom of a cup then turned the cup over into a bowl of water and the paper towel stays dry like scuba diver helmets. http://www.learnplayimagine.com/2014/06/how-to-keep-tissue-dry-in-water.html?m=1