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.
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!