The baking soda volcano is a classic experiment that most adults remember from their childhood. But this science experiment being around for generations doesn’t lessen its wonder the first time a student sees the reaction, or decrease the fun and nostalgia for adults. Plus, you can add twists to the basic experiment to make it new and interesting all over again.
For the basic baking soda volcano experiment you need the following materials:
What You Need:
- Plastic cup
- Plaster of Paris
- Paint for the volcano
- ARM & HAMMER™ Baking Soda
- ¼ cup vinegar
- Hand dish washing liquid
- Red food coloring
To Make the Volcano:
- On a baking sheet (or other easily cleaned surface), shape cardboard into a broad cone shape using the cup to form a “crater” at the top of the volcano.
- Use plaster of Paris to cover the cone used to form the volcano (do not get plaster into the crater).
- Allow the volcano to dry completely.
- Paint or decorate the volcano as desired.
To Make the Eruption:
- In a plastic cup, mix ¼ cup vinegar with a few drops of hand dishwashing liquid, a few drops of water and a few drops of red food coloring.
- Put 1 teaspoon of ARM & HAMMER™ Baking Soda in a small, empty plastic cup. Place this cup inside the volcano crater.
- Quickly pour vinegar mixture into the ARM & HAMMER™ Baking Soda cup that’s inside the crater.
- Have your phone ready to video the reaction — the volcano’s, and your kids’!
*Parental supervision recommended. Protect eyes as appropriate.
Buy a box of ARM & HAMMER™ Baking Soda today!