Crossword Puzzle 1.1

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Across
  1. 3. Particles of gas move rapidly & ______ in all directions.
  2. 4. and flow until they _______ free (continuation of question # 19)
  3. 6. Change of state of matter from gas to solid
  4. 7. Everything in the universe is made up of _____
  5. 8. Particles of solid _______ in fixed position.
  6. 11. Air particles inside the balloon push outward on walls keeping it ______.
  7. 16. It explains how & why particles behave differently depending on temperature & state of matter
  8. 18. Perfume _________ gas particles rapidly through the air reaching your nose
  9. 19. Lower temperature slower moving particles _____ energy
  10. 20. Particles are in constant ______, they never stop moving.
Down
  1. 1. Change of state of matter from liquid to gas
  2. 2. It refers to the average kinetic energy of particles
  3. 5. Higher temperature faster moving particles _____ energy
  4. 9. Change of state of matter from liquid to solid
  5. 10. Change of state of matter from solid to liquid
  6. 12. Particles of liquid slide & ______ past each other
  7. 13. Change of state of matter from gas to liquid
  8. 14. Adding ______ causes solid particles to vibrate faster
  9. 15. Heat makes water molecules fast enough to become ________.
  10. 17. Change of state of matter from solid to gas