Across
- 3. C6H12O6
- 4. smallest portion of matter
- 7. smallest particle of an element
- 8. pure substance
- 9. 2 or more elements to form a pure substance
- 10. looks the same throughout
- 12. NaCl
Down
- 1. matter made of 2 or more elments
- 2. doesn't look the same throughout
- 5. H2O
- 6. smallest particle of a compound
- 11. has mass and takes up space