Weather 1

2. The layer of gases surrounding Earth held in by gravity
3. A place where one air mass meets and pushes aside another air mass
4. The information or measurements you collect in an investigation and experiment
8. A weather instrument that measures air pressure
11. pressure The weight of air pushing on everything around it; measured with a barometer
12. mass A large area of air in the atmosphere that has about the same temperature and humidity throughout it
13. A form of water (rain, snow, sleet, or hail) that condenses in the atmosphere and falls to the Earth’s surface
14. The amount of water vapor in the air
15. Water found in rivers, lakes, glaciers, ice sheets, and underground that contains low concentrations of salt
16. Type of precipitation made up of small balls of ice
17. The entire body of saltwater that covers about 71% of Earth

1. Physical change in matter from a gas (water vapor) to a liquid
5. The changing of water from liquid to a gas (water vapor)
6. cycle The continuous movement of water through the environment by evaporation, condensation, precipitation, and runoff
7. A form of water (rain, snow, sleet, hail) that condenses in the atmosphere and fall to the Earth's surface
9. Water found in oceans (and few lakes) that contains 3–4% salt
10. The movement of water on a surface to areas of lower elevation
11. A buildup or gathering of something that occurs over time
12. A weather instrument that measures wind speed