The Kinetic Molecular Theory

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Across
  1. 3. particles of matter are always in ___________
  2. 4. there are no ____________ of attraction between gas particles
  3. 6. as the number of collisions increases, pressure ____________
  4. 9. the spontaneous mixture of the particles of two or more substances caused by random motion
  5. 10. what keeps all of the gases in our atmosphere from taking off into space?
  6. 11. ________ is exerted when particles hit the sides of the container
Down
  1. 1. gases as well as liquids flow and both have ____________
  2. 2. expand to fill their containers
  3. 5. particles are in constant, ___________, straight-line motion
  4. 7. collisions between gas particles, other particles, and the container wall are _______ collisions
  5. 8. gases are mostly __________ space
  6. 12. particles move __________ when it's colder