Across
- 4. Phase change going from gas to liquid
- 5. Chemical changes occur when one chemical substance is transformed into one or more different substances
- 8. Matter that has a definite volume, but not a definite shape. The particles are farther apart and move faster than a solid
- 10. Characteristics of matter that can be observed as a substance changes its identity
- 15. Demonstrates that electrons are in orbit of differing energy around the nucleus
- 16. Characteristics of matter that can be observed without changing the identity of the substance
- 17. Neutral subatomic particle located inside of the nucleus of an atom
- 18. Matter that has a fixed shape and definite volume. The particles are tightly packed together and vibrate in place
- 19. Phase change going from liquid to solid
Down
- 1. Physical changes occur when objects or substances undergo a change that does not change their chemical composition.
- 2. Two or more different atoms joined together
- 3. The smallest unit of matter
- 6. Matter that has no definite shape or volume. The particles are spread out and move quickly.
- 7. Phase change going from solid to gas
- 9. Phase change going from liquid to gas
- 11. Two or more atoms joined together
- 12. Negative subatomic particle located outside of the nucleus of an atom
- 13. Phase change going from solid to liquid
- 14. Positive subatomic particle located inside of the nucleus of an atom