Download Chapter 7 Study Guide (Weather)

Name ____________________________
Chapter 7 Study Guide (Weather)
1. The lowest layer in the atmosphere is the _____troposphere________________.
2. A thermometer measures _______air temperature_______________________.
3. A ____barometer____________ measures air pressure.
4. A rain gauge measures _________precipitation__________________________.
5. A ___hygrometer_____________ measures humidity.
6. A wind vane measures ___wind direction______________ and an anemometer
measures _____wind speed________________________.
7. What kind of weather can be expected with low pressure?
__warm, rainy, stormy weather__________________________________
8. Compare and Contrast the climate of the United States to the climate around the
equator.
__Equator:tropical, warm, and wet year round US: warm summers, cool winters,
precipitation year round_______________________________________________
9. Explain step by step how clouds form.
__Water vapor is carried to the atmosphere; the droplets get colder and slow down.
When they slow down they start to condense around dust particles-forming clouds.
10. Explain how lightning causes thunder.
__Lightning raises the temperature of the air around it so it becomes very hot
suddenly. This makes the air expand violently-resulting in thunder. ______________
11. A __thunderstorm____ may occur when warm air rises, carrying moisture with it.
Name ____________________________
12. Average temperature and rainfall are two important variables for determining an
area’s __climate________________.
13. Energy from the sun that reaches the Earth’s surface is called _insolation_______.
14. An air mass is a large region of air with similar temperature and humidity.______
15. A storm with winds blowing faster than 74 mph is classified as a __hurricane____.
16. A rain shadow is the dry area on the leeward side of a mountain_______________
17. A constant stream of moving water in the ocean is called a _current____________.