Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Ch.15
Study Guide
| Question | Answer |
|---|---|
| list the examples of local winds | Land and sea breeze. |
| What are auroras and where are they found? | Shimmering lights found in the ionosphere (thermosphere) |
| Our ozone layer absorbs which type of harmful radiation from the sun? | uv or ultraviolet rays |
| How much oxygen and carbon dioxide is found in our air? | 21% is oxygen less than 1% is carbon dioxide |
| Which global wind blows away from the poles to the west? | polar easterlies |
| What are the 2 most abundant gases found in the air? | Nitrogen and oxygen |
| Describe air pressure | The measure of the force with which air molecules push on a surface |
| What happens to air pressure as altitude increases? | As altitude icreases air pressure decreases |
| Describe jet streams | Narrow belts of high speed winds that blow in the upper troposphere and lower stratosphere |
| What is the greenhouse effect? | The process by which gases in the atmosphere absorb thermal energy |
| Explain the 3 ways that heat is transferred | Conduction = material/direct contact Radiation = EM waves (can’t touch) Convection = energy through liquid or gas |
| Where do trade winds flow toward? | Flow towards the equator |
| What does the Coriolis Effect make the winds do? | Makes winds curve |
| Describe the doldrums. | This is where trade winds meet; on the equator, very light winds - dull |
| What is the ozone layer? Where is it found? | Found in the Stratosphere, layer of oxygen that absorbs most of sun’s UV rays |
| Describe the thermosphere. | Uppermost layer of the atmos. Temp. inc. due to solar radiation. Aurora Borealis occurs here. |
| What is the most common atmospheric gas? | nitrogen |
| What parts of the earth cools off faster and heats up faster? What does this unequal heating create? | Land cools and heats fastest; creates wind |
| What is smog? | Polluted air that forms when sunlight reacts with ozone and exhaust |
| Describe the movement of convection currents. | With a heat source, cold sinking dense air pushes warm light less dense air – continues in a cycle |
| Which instrument measures air pressure? | barometer |
| What is significant about the troposphere | we live on it. weather happens here |
| What kind of ways have humans created air pollution? | Burning fossil fuels – exhaust, chemicals |
| What is another name for the distance above sea level | altitude or elevation |
| What are global winds? | Combination of convections cells at every 30 degrees latitude; winds that blow across long distances |
| What does the name of a wind tell you? | Wind name tells you where the wind is coming from |
| . How much of the sun’s energy actually reaches the Earth? | 2biiliont of the sun's energy |
| What property are the layers of the atmosphere based on | temperature |
| Which calm area is located around 30 degrees north and south latitude? | horse latitude |
| What is the atmosphere? | Layer of gases that surround the Earth and protects us from UV and space objects |
| List the 3 global winds and the 2 calm areas | Global winds – polar easterlies, westerlies, trade winds Calm areas – doldrums, horse latitudes |
| What is global warming? | The increase in average temperature on Earth |
| If air mass increases what happens to density? | As air mass increases the density increases |
| What type of winds blow over short distances | local winds |
| . How are all winds created? | Unequal heating of the earth’s surface |
Created by:
Uchiha Madara