Make elephant toothpaste with 3% hydrogen peroxide, yeast, and dish soap, then discover what creates the colorful foam.

The Science Siblings love an at-home experiment. Paige and Adam Jacobson went the chemistry route with this one, concocting “elephant toothpaste.” Start by adding the food coloring to the hydrogen ...

A classic science experiment gets an extreme upgrade when a crew transforms a small foam reaction into a giant outdoor demonstration. Wearing protective gear, they prepare a massive setup inside an ...

Fun at COSI: Elephant's toothpaste experiment The COSI Science Festival kicks off next Wednesday and they're rolling out new hands-on activities for families, including a popular experiment you've ...