In this interactive, adjust the temperature and pressure of three common substances and watch them morph into different states of matter. Along the way, you'll see just how inextricably ...

In this lab, you will fill out a foldable on the three primary states of matter. Then you will watch a video showing ice melting from a solid to a liquid and boiling from a liquid to a gas. After ...

The state of matter is a deceptively simple concept. It turns out that any material, no matter what it is made of, can exist in one of three forms: solid, liquid or gas. These are categories of ...