Across
- 2. Rapid expansion of air due too the super-heating from the 50,000 degree temperature of the lightning bolt
- 5. When rain falls through a layer of cold air and freezes before it hits the ground
- 7. An electric discharge
- 8. Cold air mass meets warm air mass and no movement occurs
- 9. When cold air moves toward a warm air mass
- 11. Water droplets that are 100 times the size of cloud droplets
- 13. Flat, thin, and layered clouds
- 14. Wispy, feathery clouds that are the highest in the sky and made up of ice crystals
Down
- 1. When warm air moves toward a cold air mass
- 3. When the temperature of air is cool enough so it can't hold water vapor, it condenses onto a dust particle becoming a cloud
- 4. Occurs after rain hits the ground, freezes upon contact with the ground
- 6. When air is so cold that a gas changes directly to a solid(Water vapor to _____)
- 9. Big puffy, white clouds
- 10. Large ice pellets
- 12. Amount of water vapor in the atmosphere