We had tons of fun making a snow volcano the other day. We've never made a volcano before and I knew P would love it.

We took a plastic cup and built up snow around it to (somewhat) resemble a volcano. Then he poured in some baking soda and a lot of food coloring. Last, he poured vinegar into the baking soda and VIOLA, a live volcano :) We ran out of vinegar pretty quickly, but I bet this would be cool if you used different colors.

He then proceeded to smash the volcano with his boots, because you know, everything is better trampled. Duh.