Across
- 2. An instrument used to measure temperature
- 5. An imaginary line around the middle of the Earth forming a circle that is equidistant from the north and south poles
- 8. A scientist who studies the causes of weather and tries to predict it.
- 9. Layers of air surrounding the earth.
- 10. the study of weather
- 14. The condition of Earth's atmosphere at a particular time and place.
- 15. The average weather conditions in an area over a long period of time; Seasonal pattern of weather conditions in an area over many years; does not change rapidly
- 17. An instrument that measures atmospheric (air) pressure
- 18. an instrument that measures wind direction
Down
- 1. air is heavy, lower/cooler temperatures, clear skies, little or no precipitation
- 3. half of the earth
- 4. air is light, brings warmer temperatures, high cloud cover, high winds, much precipitation
- 6. An instrument used to measure precipitation
- 7. An instrument used to measure wind speed
- 11. Distance north or south of the equator
- 12. A balloon released into the atmosphere that carries a package of instruments to record data about temperature, air pressure, and humidity at a high altitude.
- 13. An instrument used to measure humidity
- 16. A measure of the amount of water vapor in the air
