Tuesday, September 21, 2010

Recipe for a Volcano

We made a volcano in class the other day and some of the students wanted to do it at home. Here is what you need. (We just estimated the amounts. If you don't get a very good lava flow, add a little bit more of each ingredient.)

1/2 cup hydrogen peroxide
1 tsp. yeast
drink bottle (we used a bud vase in class)
Pour the hydrogen peroxide in the bottle. Add the yeast. Swirl (gentle shake) it together. Watch the lava flow.