Across
- 4. the mass per unit volume
- 6. the chemical symbols and numbers indicating the atoms contained in the basic unit of a substance
- 8. mixing occurs between individual units
- 9. a substance that cannot be broken down into simpler substances
- 10. the ability to change or move matter
Down
- 1. anything that has mass and occupies space
- 2. a change in physical form but not in composition
- 3. a change in the composition by forming one or more new substances
- 5. substances are not uniformly mixed
- 7. the way a substance reacts with others to form new substances with different properties