Baking a cake is a great way to do science without even knowing it. When you bake a cake, the ingredients go through a chemical change. A chemical change occurs when the molecules that compose two or ...

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 ...

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 ...

Star chemistry reveals two spiral arms and a faint bridge in the Milky Way, offering a clearer view of hidden structure in ...

Facing lawsuits and criticism from scientists, environmental groups, and the chemical industry, the US Environmental Protection Agency is overhauling its approach for evaluating risks associated with ...