Across
- 3. when a substance is cooled to below freezing
- 4. forms when cold air masses overtake a warm air mass
- 5. how direction of the wind is determined
- 6. a gradual increase in the average global temperatures
- 7. water vapor that has condensed very close to earths surface
- 9. the formation larger droplets
- 10. forms when cold air retreats from one area
- 12. develops over warm, tropical oceans
- 14. two thermometers mounted together
- 15. when solid changes right into a gas
- 17. stands for radio detection
- 20. heavy storm with rain, thunder, lighting and strong winds
- 22. the gaseous phase of water
- 26. the movement of matter due to differences in density
- 27. lowest layer of atmosphere
- 28. gas molecule made up of 3 oxygen atoms
- 29. blows east to west from 30 degrees latitude to equator
Down
- 1. cloud with a dark bottom and top that looks like cotton ball
- 2. and form of water that falls to earths surface
- 4. scientist that study past and present climate
- 8. blows in upper troposphere
- 11. uppermost layer of atmosphere
- 13. fluffy looking object in the sky
- 16. thee transfer of heat energy as heat through a material
- 18. composed of ice crystals with the highest altitude of any cloud in the sky
- 19. an instrument that measures atmospheric pressure
- 21. measures temperature, you use when you feel sick.
- 23. measures wind speed
- 24. mixture of gasses sounding earth
- 25. a destructive rotating column of air