Catalysts Demonstrations

Demonstration	Materials	Difficulty	Safety	Summary
Elephant's Toothpaste	★★☆	★★☆	★★☆	30% Hydrogen peroxide is added to a Potassium Iodide catalyst, detergent and food colouring, and Oxygen bubbles rapidly produce a foam.
Elephant's Toothpaste 2	★★☆	★★★	★★☆	Summary text
Test Demonstration that may have quite some length	★★☆	★★★	★★☆	Summary of this demo.

Materials
★☆☆ Easy to get from supermarket or hardware store
★★☆ Available in most school laboratories or specialist stores
★★★ Requires materials not commonly found in school laboratories

Difficulty
★☆☆ Can be easily done by most teenagers
★★☆ Can be done by science teachers
★★★ Requires a more experienced teacher

Safety
★☆☆ Minimal safety procedures required
★★☆ Some safety precautions required to perform safely
★★★ Only to be attempted with adequate safety procedures and trained staff