Make a Spewing Pumpkin
In this science experiment, kids create a classic acid/base chemical reaction inside a carved Halloween pumpkin.
A chemical reaction happens when two or more ions, molecules or atoms interact. When an acid and a base are combined, a chemical reaction occurs as each tries to neutralize the other. In this experiment, when vinegar (an acid) and baking soda (a base) are combined, a chemical reaction occurs which produces carbon dioxide gas (the same gas we humans breathe out). These are the bubbles you see in this experiment.
Materials
Instructions
Place the carved pumpkin into a dish or tray.
Add vinegar to a depth of at least 1/2", but don't let it overflow. Add food coloring to the vinegar if you want your spew to be colorful!
Add about a teaspoon of dish soap.
Add baking soda by the tablespoon until your pumpkin is spewing!
