Across
- 3. Most are solids at room temperature
- 4. A measure of the amount of matter
- 7. Not easily reversed
- 10. Many are gases, solids are brittle
- 13. variable shape,variable volume
- 16. Process that releases energy into the surroundings
- 17. Separates a solid from the liquid in the heterogenous mixture(by size)
- 18. A Substance made up of atoms with the same atomic number
- 19. Depends on the type of matter,not the amount present
- 20. variable shape,fixed volume
Down
- 1. Matter with variable composition, made from 2 or more substances
- 2. Anything with mass that occupies space
- 5. fixed shape,fixed volume
- 6. Matter with constant composition, all particles have the same properties
- 8. Depends on the amount of matter in the sample
- 9. Can be released and absorbed in a reaction, is not created nor destroyed
- 11. Have properties of both metals and nonmetals
- 12. A substance that is currently a gas, but normally is a liquid or solid at room temperature
- 14. A process that absorbs energy from the surroundings
- 15. Substance that is made from atoms of two or more elements that are chemically bonded