This video program will help students to understand that matter is composed of atoms that are made up of subatomic particles that interact with each other. Viewers will learn that matter can exists as a solid, as a liquid, a gas or as a plasma and that it can change from one state to another.

Originally released by Mazzarella Media, 2015. Streaming video file encoded with permission for digital streaming by Infobase on July 16, 2018.

What Is Matter (4:00); .