Across
- 3. long periods of unusually low precipitation
- 4. this type of cloud forms less than two kilometers above the ground, but can rise upward to up to 18 kilometers
- 5. drops of water that are at least 0.5 millimeters in diameter
- 6. ice particles that are smaller than 5 millimeters in diameter
- 8. the process by which water molecules in liquid water escapes into the air as water vapor
- 9. any form of water that falls from clouds that falls to Earth's surface
- 10. round pellets of ice larger than 5 millimeters in diameter are called hailstones
- 13. rain that does not freeze when in the air, but freezes when it touches a cold surface
- 15. ice crystals that fall from the sky called snow
Down
- 1. this type of cloud forms in flat layers and form low under about 3 kilometers
- 2. condensation the process in which molecules of water vapor in the air become liquid water
- 3. the temperature at which condensation begins
- 7. the percentage of water vapor that is actually in the air air compared to the maximum amount of water vapor the air can hold at a particular tempature
- 11. the process by which water molecules in liquid water escapes into the air as water vapor
- 12. this type of cloud forms only at high levels, above about 6 kilometers, where temperatures are very low
- 14. an open ended can or tube that collects rainfall
