Across
- 2. they can be homogeneous or heterogeneous
- 6. also known as SI
- 9. examples:flammability and the ability to rust
- 11. used to represent compounds
- 13. mass over volume
- 14. differs on different planets
- 15. never changes no matter where you are
- 16. everything is this
Down
- 1. can be measured using a graduated cylinder
- 2. two or more atoms
- 3. pure matter
- 4. substance that cannot be broken down
- 5. examples:boiling and melting
- 7. has a nucleus and a cloud of negative charge
- 8. a different number of atoms in a formula represents a different _________
- 10. a molecule is held together by this
- 12. he studies ________ to find out more about matter