Elephant Toothpaste Kit, Includes: 150ml Hydrogen Peroxide, 3%, 30ml Dish Soap, 1 Clear Bottle, 8oz, 5g Yeast, 5 5oz Plastic Cups, 5 Stir Sticks, Demonstration that is classroom safe and shows the effects of a catalyst on a chemical reaction, For grades 2-5
Racing Rings consists of three rods one each of copper, aluminum and PVC, Ring magnet is dropped down the PVC rod, it falls unobstructed, Two metal rods create an induced magnetic field to that adds resistance to the rings travel, metals are different, they fall at different rates