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