scientific crossword

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Across
  1. 3. When the substance reaches a cool enought temperature at a certain pressure
  2. 5. have same substance, same element and attracted to one other
  3. 7. Is the physical changes of state where a solid converted directly into a gas
  4. 9. when a gas transforms directly into a solid
  5. 13. when the substance reaches a combination of temperature and pressure
  6. 15. when heat is added to a liquid
  7. 16. Is the physical changes of state where a gas loses energy to form a liquid
  8. 17. when temperature and pressure at which a liquid transform into a gas
Down
  1. 1. Are in costant motion
  2. 2. Is the physical change of state where a liquid transform to a gas
  3. 4. what happened at water at temperature below 0
  4. 6. it has definitive shape and volume
  5. 8. you can use it to measure temperature
  6. 10. Caused by motion and pressure
  7. 11. everything occupies a space and has mass and volume
  8. 12. Is the state of matter where particles are free to move over each other
  9. 14. It has a lot of kinetic energy