1. Vocabulary Set #2

2. Chemical Change change in which the composition of a substance changes.

3. Chemical Property Chemical properties of matter describes its "potential" to undergo some chemical change. For example hydrogen has the potential to ignite and explode. This is a chemical property.

4. Deposition the process by which a gas changes into a solid.

5. Law of Conservation of Mass states that mass is neither created nor destroyed – and as a result the mass of the substances before is the same after a chemical or physical reaction.

6. Physical Change change in which the form or appearance of matter changes, but not its composition.

7. Physical Property characteristic that can be observed, using the five senses, without changing or trying to change the composition of a substance.

8. Sublimation the process by which a solid changes directly into a gas.