If foreign molecules such as sodium and chlorine (the ... When you sprinkle salt onto an ice cube, the local salt concentration skyrockets and the freezing point comes tumbling down.

Put ice cubes into two clear plastic cups until they are about ½ ... Most air, except for in very dry places, has water molecules mixed in with the other molecules that make up the air. When water ...

After melting, the water molecules are closer together than they were as ice. As a liquid, the molecules are more randomly arranged and the molecules are able to slide past each other. As energy is ...