Unit 2 Matter and Energy Vocab

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Across
  1. 2. A chemical combination of two or more elements in a definite ratio.
  2. 5. separation technique that would be used to separate water from salt
  3. 6. Ability to be drawn into a wire
  4. 7. Element that comes as an identical pair of atoms when by itself
  5. 9. separation technique that would be used to separate sand and water
  6. 13. phase change from a solid directly to a gas
  7. 14. Ability to be hammered into sheets
  8. 15. The simplest form of matter.
  9. 18. A physical change of matter where a gas loses heat to become a liquid.
  10. 19. The property that describes metallic “shine”
  11. 20. Different composition throughout a sample
Down
  1. 1. A physical state of matter that has a definite volume and a definite shape.
  2. 3. Changing directly from a gaseous state to a solid state.
  3. 4. A physical change in matter going from a liquid state to a gaseous state.
  4. 6. separation technique based on boiling point
  5. 8. A physical state of matter that takes the shape of the container but has a definite volume.
  6. 9. This is another term for melting.
  7. 10. mixture that is uniform throughout; solution
  8. 11. the average kinetic energy of a substance
  9. 12. A physical state of matter that takes the volume and the shape of the container that it’s in.
  10. 16. energy is released
  11. 17. energy is absorbed