Video: A First Look: Solids, Liquids, and Gases

This program explains that matter takes up space and has weight. Solids keep their shape. Liquids and gases take the shape of the containers they occupy. Gases fill whatever space is available. Matter can change from one state to another through freezing, melting, condensation and evaporation.

Watch this video to learn more about the Solids, Liquids, and Gases. This video is 17 minutes in length.

Does air take up space? Does it weigh anything?

Yes, air takes up space and has weight.

Water as a gas is called water vapor. How does water vapor change into liquid water?

Water vapor comes in contact with something cold and changes back into water. This is called condensation.