Across
- 1. an educated guess
- 7. Anything that has mass and takes up space
- 8. Contains more than one type of particle
- 9. smallest piece of matter
Down
- 2. A pure substance that cannot be broken down
- 3. Sodium Chloride
- 4. Contains multiple elements bonded together
- 5. Shiny, good conductors, malleable and ductile
- 6. column of the periodic table