Across
- 8. a glowing light in Earth’s atmosphere, usually near the North Pole, caused by the collisions of charged particles with atoms in Earth’s atmosphere.
- 11. the layer of gases that surrounds Earth or another planet.
- 14. the force of attraction between two objects because of their masses
- 15. the liquid phase of water
- 16. a large body of air with roughly the same temperature and humidity
- 18. the process of water vapor turning into liquid water
- 21. are scientists that make predictions and forecasts the weather
- 22. a type of weather front where an air mass gets separated from the ground by a fast-moving cold air mass, resulting in heavy rain
- 23. a thick, dense cloud located near the ground
- 24. Meteorologists use ___________ to represent different kinds of weather fronts
- 26. an imaginary line drawn around the middle of Earth, halfway between the north and south poles.
- 27. energy produced or radiated by the Sun
- 28. the circulation of air due to heating and cooling of molecules
Down
- 1. the process of water being released from clouds in the form of rain, hail or snow
- 2. a large, tall, and dense cloud that often produces heavy rain and thunderstorms
- 3. the process by which water changes from a liquid to a gas or vapor
- 4. the process by which solids form
- 5. to change from a liquid to a gas.
- 6. a type of weather front where warm air masses overtake cold air masses
- 7. a measure of how much water vapor is in the air
- 9. Winds are caused due to ____________ __________ of the Earth
- 10. the gaseous phase of water
- 12. winds that blow mostly in one direction, moving air masses
- 13. a type of weather front where cold air masses overtake warm air masses
- 17. an instrument used for measuring the speed (and sometimes direction) of the wind.
- 19. the boundary between two air masses
- 20. a type of weather front where a cold air mass and a warm air mass meet, but neither pushes the other out of the way
- 25. water beneath the surface of the ground