Download Chapter 5 Study Guide – Earth`s Weather

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Chapter 5 Study Guide – Earth’s Weather
Please be sure to review all test readings, WB pages and other WS’s in addition to using this study guide!
Chapter 1 – Earth’s Atmosphere, pp 232-239, WB 98-101
Chapter 2 – Air Currents and Wind, pp. 242-249, WB 102-107
Chapter 3 – Oceans and Air Temperature, pp. 252-259, WB 108-111
Chapter 4 – Severe Weather, pp. 262-272, WB 112-119
Chapter 5 – Predicting the Weather, pp. 272-285, WB 120-125, 126-127
1.
The layer of the atmosphere closest to Earth’s surface and contains 99% of the air is the troposphere.
2. Most weather occurs in the troposphere.
3. Air pressure decreases as you go higher in the atmosphere.
4. Air pressure can be measured using a barometer.
5. Death Valley registers the greatest barometric pressure when all CA weather is calm, warm and dry.
6. Air on top a a mountain pushes with less pressure.
7. Winds are caused by air moving from areas of high to areas of low pressure.
8. Winds that move air masses are caused by uneven heating of the Earth by the sun.
9. Global winds are caused by uneven heating and the Earth’s rotation on its axis.
10. In a convection current, warm air rises, cold air sinks.
11. Seattle, WA receives less heat energy thank San Diego, CA because it is farther from the equator.
12. Temperatures are different around the world because of Earth’s shape.
13. Temperatures at the coast are influenced by oceans and are colder in the summer, warmer in winter.
14. Ocean currents transfer heat from one place to another and affect weather and climate.
15. Air temp’s along the coast are higher in winter because ocean water warms the air.
16. The slow warming and cooling of Earth’s oceans helps to prevent El Nino conditions.
17. Temp. and moisture content (humidity) are two properties used to describe air masses.
18. A front is formed when two air masses meet.
19. As air masses move, they usually bring a change of weather.
20. Lightning is caused by electric charges that build up in clouds and discharge.
21. Thunder is caused by intense heat caused by lightning expanding in the air.
22. A violent tropical storm that forms over the ocean and has a central eye is called a hurricane.
23. Warm, moist air rises rapidly from Earth’s surface before a thunderstorm begins because a mass of cold
air may have slipped under a mass of warm, moist air forcing it upward.
24. A hurricane’s low-pressure area, or eye, is marked by no precipitation and no winds.
25. Weather systems in the U.S. tend to move from west to east.
26. Doppler radar can measure wind speeds, precipitation, and direction of the wind.
27. A weather map shows data about recent weather conditions across a large area.
28. Factors most important to weather prediction are air pressure, wind speed, weather fronts.
29. It is important for weather maps to include symbols to show direction and location of weather fronts.
30. Rotation of the earth is the factor that causes air systems to move to the right.