Physical Science Crossword

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Across
  1. 3. a state of matter that has a definite shape/volume
  2. 8. reaction that absorbs heat
  3. 11. the amount of space that matter occupies
  4. 12. how much matter is in an object
  5. 14. pure substance that cannot be broken down
  6. 15. a measure of the motion of the particles
  7. 18. a unit of mass
  8. 19. mixture that is the same throughout
  9. 20. a state of matter with no definite shape/volume
Down
  1. 1. height of a wave from rest to crest
  2. 2. to pass through a medium
  3. 4. amount of mass in a given volume
  4. 5. rate of vibration of a wave
  5. 6. the material through which a wave travels
  6. 7. reaction that gives off heat
  7. 9. the high part of a wave
  8. 10. mixture that is not the same throughout
  9. 13. when light bounces off a medium
  10. 16. basic particle from which all elements are made
  11. 17. anything that has mass and takes up space