Across
- 2. The measure of the amount of matter
- 3. High KE-particles can separate and move
- 5. Most of them are solids at room temperature
- 9. Substance made from atoms of two or more elements
- 10. particles of matter are always in motion
- 11. The study of composition, structure, and properties of matter.
- 12. beginning substances that start a reaction
- 14. Low KE-particles can move around but still close together
- 15. Very low KE-particles (vibrate)
- 16. Energy of Motion
Down
- 1. particles collide with energy to break into charged particles
- 2. Have properties of both metals and nonmetals
- 4. Energy possessed by an object due to its position composition, or conduction.
- 6. process that absorbs energy from the surroundings
- 7. process that releases energy into the surroundings
- 8. Many are gases
- 13. Substances that are formed during the reaction