How do you make a baking soda volcano?

Answer by  Feasel (1766)

Usually you can make it out of paper machete. Add baking soda to the bottom, when you want it to erupt add vinegar. It'll cause an intense foaming. You can add food coloring for effect. Just keep cleaning supplies nearby.

Answer by  Amber40 (24961)

Start by making the volcano. Use some type of tall waterproof container then build you volcano around it leaving the top open. Decorate it to look like the real thing. When finished simply add in baking soda then pour in vinegar with some food coloring(optional)to make it erupt.