Across
- 7. the measurement of how high you are above the sea level
- 8. the second highest layer of the atmosphere, where satellites orbit
- 9. when gas molecules cool down into a liquid
- 12. the lowest layer of the atmosphere
- 14. when a solid instantly changes into a gas
- 15. the measurement of how hot something is (by how fast its molecules are moving)
Down
- 1. when water falls down as rain or snow
- 2. when liquid molecules heat up into a gas
- 3. the second lowest layer of the atmosphere, holds most of the ozone
- 4. when a solid heats up into a liquid
- 5. the middle layer of the atmosphere
- 6. the outer most layer, closest to space
- 10. the weight of air pushing down on you
- 11. when a liquid cools down into a solid
- 13. when water moves down surfaces