Across
- 4. the imaginary great circle of 0 degrees latitude on the earth's surface
- 6. It results from days of heavy rain and/or melting snow, when rivers rise and go over their banks
- 7. a weather instrument that measures the wind speed
- 9. A boundary between two air masses, one cold and the other warm
- 10. a mixture of liquid and frozen precipitationm composed of layers of ice and can become quite large when strong gusts of upwar
- 11. the season of the year that occurs after summer and before winter
- 12. water that forms on objects. close to the ground when its temperature falls below the dew point of the serface air
- 14. the external coditions and surroundings, especially those that affect the quality of life of plants
- 16. the third planet from the sun and is our home
- 17. the wearing away of the earth's surface by the action of the sea
- 18. a light wind
Down
- 1. the mixture of gases
- 2. an intense winter storm with winds of 35 m.p.h. or higher
- 3. an instrument that measures air pressure
- 5. a visible collection of tiny water droplets or, at colder temperatures
- 7. a layer of gases surrounding a planet, is divided into five layers
- 8. the process of changing a liquid (Like water) to a vapor
- 9. it describes the average weather conditions in a certain place or during a certain season
- 13. the shaking or movement of a portion of the earths surface
- 15. a cloud on the ground that reduces visiblity