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 ...

Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...

It's easy to create your own batch of elephant toothpaste. STEP 2: Add some dishwashing liquid to the peroxide. STEP 3: Mix a pack of yeast with the warm water. STEP 4: Pour the yeast and water ...

Most simple rockets use a solid fuel engine which, once ignited, burns at a steady rate that cannot be controlled or stopped until the fuel is expended. Hybrid engines on the other hand can be turned ...

Are you familiar with rubbing alcoholand hydrogen peroxide? They’re not advertised much. They’re simple, inexpensive liquids that sit on pharmacy or supermarket shelves until they manage to make their ...

Hydrogen peroxide is an ingredient in many bleaches, dyes, cleansers, antiseptics, and disinfectants. It has many potential uses, such as for skin care and oral hygiene. However, there are also safety ...