Across
- 3. Clouds can affect the temperature on Earth’s _________. During the day, thick clouds block some of the Sun’s rays. This keeps the surface from heating up as much as it would on a clear day.
- 4. When water vapor condenses, it forms clouds and ___________.
- 6. Stratus clouds that produce precipitation are called this.
- 9. The average of weather over a long time.
- 10. Clouds form when air in the ______ reaches the dew point.
- 11. _______ falls if the air temperature is above freezing (32 degrees).
- 12. At night, thick clouds prevent ______ from radiating out into space. This keeps the surface warmer than it would be on a clear night.
- 13. Clouds that form on the ground.
- 14. Warm air is ______ dense, so it rises. When this happens, more dense air flows in to take its place. The flowing surface air is wind.
Down
- 1. This forms when snow melts as it falls through a layer of warm air then refreezes.
- 2. The conditions of the atmosphere at a given time and place.
- 5. Weather occurs because of ________ heating of the atmosphere. The source of heat is the sun.
- 7. The _______ at which water vapor condenses is called the dew point.
- 8. The amount of water vapor in the air.
- 12. ______ humidity increases the chances of clouds and precipitation.
