chemistry

3. A substance made of only one type of atoms. Ex: Pure gold
4. Anything made of atoms, has mass, and takes up space.
6. The smallest unit of matter. It cannot be broken down further without a nuclear change occurring.
8. Any change in the physical state of a substance without altering the chemical composition of that substance. EX: melting, freezing, tearing, crushing, etc.
10. A change in the chemical composition of a substance. EX: Burning, rusting, exploding.
11. The branch of chemistry that attempts to solve real world problems with the information and techniques of chemistry.
12. The study of atoms, how atoms interact with one another, and the changes associated with that interaction.
13. A property that describes a characteristic or behavior of a substance that may be observed when it undergoes a chemical change or reaction.

1. Any property that describes the physical state of a substance. Can be observed without a chemical change occurring.
2. A property that does NOT depend on the amount of a substance being measured. If the amount of the substance changes, its intensive properties will NOT change. Ex: density, color, etc.
3. A property that depends on how much of a substance is being measured. If the amount of the substance changes, its extensive properties will change. Ex: Mass, Volume, etc.
5. The study of the chemical processes that take place in living organisms.
7. The branch of chemistry where the theories and techniques of physics are applied to chemistry.
9. A substance made of two or more different types of atoms bonded together.