1. Baking soda and vinegar-the old tried and true. Science Bob says to add a little dish soap and food coloring.
2. Active yeast and hydrogen peroxide.
I think that the yeast one will have a better reaction than the vinegar because the yeast and peroxide have more chemically compound elements. Also I have seen a little baking soda and vinegar and it isn’t that impressive.
Here's what happened:
Volcano eruption #1: Baking soda and vinegar with a touch of dish soap and a few drops of red and yellow food coloring.
Observations: reaction time, immediate. As soon as I poured the vinegar it started bubbling. It was really foamy. Probably should have used less dish soap. I compared this to a Hawaiian eruption because it was a quiet eruption that did not create a fountain of lava and the lava was runny.
Volcano Eruption #2:
Volcano eruption #2: Active yeast and hydrogen peroxide.
Observaions: reaction time, slower than baking soda and vinegar. I compared this this to a Hawaiian eruption also. It was slow, not violent at all, very quiet. It was thicker than the baking soda and vinegar. Still wouldn't be a Strombolian eruption because it didn't make a fountain of lava.
Volcano eruption #3: Diet Coke and Mentos (just for fun!)
Observations: reaction time , almost immediate, once the Mentos went in to the Diet Coke. The liquid shot high into the air. I think it would be considered a Plinian eruption because it was very fast, and very high. Plinian eruptions blow gas, ash and debris high into the atmosphere.
