Across
- 2. Anything that has mass and occupies space.
- 4. Any matter that has a fixed composition and definite properties.
- 5. A substance made of atoms of more than one element bound together.
- 9. Mixing occurs between individual units.
- 10. A combination of more than one pure substance.
Down
- 1. A substance that cannot be broken down into simpler substances.
- 3. Substances are not uniformly mixed.
- 6. The chemical symbols and numbers indicating the atoms contained in the basic unit of a substance.
- 7. The smallest unit of a substance that exhibits all of the properties characteristic of that substance.
- 8. The smallest particle that has the properties of an element.