Chemistry

Chemistry is the science of matter and the changes it undergoes during chemical reactions. In this section, learn about everyday chemistry, from chlorine beach to helium, and even why chocolate turns gray.

Learn More / Page 4

You probably have a bottle of the stuff at your house. Have you ever seen it come in any color bottle besides brown?

By John Perritano

Why do most of us start relaxing as soon as we smell lavender or vanilla? Is it the memories they conjure up or is there a chemical reason?

By Dave Roos

Although the term might be unfamiliar, you know all about alkali metals. Ever used salt or eaten a banana? So, what special properties do these elements have?

By Trevor English