Across
- 1. substance that is currently a gas, but normally is a liquid or solid at room temperatures
- 5. Many are gases, solids are brittle
- 6. Low KE -particles can move around, but are still close together
- 7. process that releases energy into the surroundings
- 9. measure of the amount of space that is occupied
- 13. A substance that is made from atoms of two or more elements that are chemically bonded
- 15. Particles of matter are always in motion
- 18. process that absorbs energy from the surroundings
- 19. High KE -particles can separate and move throughout the container
- 20. Measure of the amount of matter
Down
- 2. A property that can be observed and measured without changing the material's composition
- 3. The ability of a substance to undergo a specific chemical change
- 4. Energy energy of motion
- 8. Matter that has a definite composition
- 10. anything with mass that occupies space
- 11. Energy energy possessed by an object due to its position, composition or condition
- 12. capacity to do work or transfer heat
- 14. Most are solids at room temperature
- 16. Very low KE -particles vibrate but can't move around
- 17. study of the composition, structure, and properties of matter.