Shap cardboard into a broad cone, forming a "crater" at the top with a small plastic cup. Cover the cone with plaster of Paris, being careful to keep plaster from the crater. Allow volcano to dry and paint as desired.
How-to Article
Author
Hy-Vee Seasons Magazine
Description
Remember this simple experiment from science class? It's super easy to recreate an erupting volcano at home with your kids. Give it a try with our easy step-by-step how-to.
Directions
In a plastic cup, mix 1/4 cup vinegar with a few drops each of dishwashing soap, water, and red food coloring.
Add 1 teaspoon of baking soda to a small empty plastic cup placed inside the volcano crater.
Wearing goggles, quickly pour vinegar mixture into the cup holding the baking soda mixture. Stand back and watch the reaction!