Chapter 2, 1-17 Key Terms Crossword

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Across
  1. 3. adding energy to go from liquid to gas
  2. 6. a substance with a changeable shape and volume
  3. 7. adding energy to go from solid to liquid
  4. 9. the model explaining that matter takes one of four distinct forms
  5. 11. materials made of just one type of particle
  6. 13. adding energy to go from solid (directly) to liquid
  7. 14. subtracting energy to go from liquid to solid
  8. 15. a substance with an unchangeable shape and volume
  9. 16. a substance with a changeable shape but unchangeable volume
  10. 17. anything that occupies space and has mass
Down
  1. 1. a substance with a changeable shape and volume, but made up of high temperature ionized particles
  2. 2. subtracting energy to go from gas to liquid
  3. 4. a form of vaporization, going from liquid to gas while surface particles gain enough energy to totally escape its liquid
  4. 5. physical combinations of two or more substances
  5. 8. a form of vaporization, going from liquid to gas over an atmospheric pressure
  6. 10. subtracting energy to go from gas (directly) to solid
  7. 12. the measurement of particles' average kinetic energy in an object