Exploding Volcanoes

This morning we had exploding volcanoes in our auditorium. McGill Redpath Museum came to the library to talk about volcanoes. It was a very interesting presentation. Following that, the kids got to make their own volcanoes.

Receipe for exploding volcanoes:

playdough ( 1 cup of flour, 1/4 salt and 1/2 c of water)

a paper plate

2 paper cups

1/4 cup of baking soda

1/2 cup of vinegar

paint optional

red food coloring optional

Put one cup on the plate. Shape playdough around the cup. Put the baking soda in the cup. You can paint your volcanoe if you choose. Pour the vinegar into the other cup. You can add red food colouring if you choose (mix well) and then quckly add it to your volcano mixture. See what happens!!!