matter

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Across
  1. 2. Important physical property of matter
  2. 5. Many solids are made up of regular repeating patterns called _____
  3. 9. Characteristics that can be observed without changing the identity of the substance
  4. 11. Temperature at which solid--> liquid
  5. 12. Gas--> Liquid
  6. 13. Solid--> liquid
  7. 14. Temperature at which a substance boils
  8. 16. Ability to burn
  9. 17. 32 degrees fahrenheit is water's ______ _____
  10. 18. Particles tend to spread far apart
Down
  1. 1. Vaporization that takes place at the surface of a liquid
  2. 3. Solid--> Gas without passing through the liquid stage
  3. 4. Liquid--> Gas
  4. 6. Particles are packed closely together
  5. 7. Describes how a substance changes into new substances
  6. 8. At 212 degrees fahrenheit, water ______
  7. 10. Water is an example of a ______
  8. 12. Process by which a chemical reaction changes a substance
  9. 15. Magnetic fields produced by powerful magnets are needed to contain ______
  10. 16. Liquid--> Solid