Science Vocab (Chapter 16)

2. An instrument used to measure wind direction.
5. An instrument used to measure air pressure.
6. Thing, feathery white clouds found at high altitudes.
9. intense storm systems that produce strong winds, heavy rain, lightning, and thunder.
11. An instrument used to measure relative humidity
13. A large body of air that has the same temperature and moisture throughout.
17. Clouds that form in layers
18. Humidity The amount of moisture the air contains compared with the maximum amount it can hold at a particular temperature
21. A small, rotating column of air with high wind speeds and low central pressure that touches the ground.
22. A tool used to measure air temperature.
24. The change of state from a gas to a liquid.
25. The temperature to which air must cool to be completely saturated
27. A large rotating tropical weather system with wind speeds equal or greater than 119 km/h.

1. The condition of the atmosphere at a particular time and place
3. Puffy, white clouds that tend to have flat bottoms
4. Water in liquid or solid form that moves from the atmosphere to the land and ocean.
7. A prediction of future weather conditions.
8. An instrument used to measure wind direction.
10. LInes that connect points of equal air pressure.
12. An instrument used to measure wind speed.
14. amount of water vapor or moisture in the air.
15. A collection of millions of tiny water droplets or crystals.
16. The large electrical discharge that occurs between two oppositely charged surfaces
17. Weather that causes property damage and possible death.
19. A small circle showing the location of a weather station along with a set of symbols and numbers surrounding it that represent weather data
20. The boundary that forms between two different air masses
23. The sound that results from the rapid expansion of air along a lightning strike
26. Cycle The Continuous movement of water sources into the air, onto land, into and over the ground, and back to the water sources.