Across
- 4. second lightest element of the periodic table
- 5. when one substance is dissolved into another
- 6. takes up space and has mass
- 7. components are evenly distributed
- 9. all particles in matter are identical
- 11. stable as two atoms bonded together
- 13. stable individual atom
Down
- 1. two or more elements chemically combined
- 2. two or more substances physically combined
- 3. quantity of matter in an object
- 5. cause to move or be apart
- 7. substances in mixture are not evenly spread out
- 8. simplest form of matter
- 10. similar in every detail
- 12. basic unit of a chemical element
