GRAND RAPIDS, Mich. — Making fresh bread at home is becoming quite the trend lately, but today we will be using yeast to make elephant toothpaste! We will learn what a catalyst is and what it does in ...

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 ...

Take 52 litres of hydrogen peroxide, 10 litres of potassium iodide and a few bottles of dish soap and you create — unofficially — the world's largest elephant toothpaste. Elephant toothpaste is a ...