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weather and climate
the air around you, air pressure, and layers of the atmosphere
| Question | Answer |
|---|---|
| The condition of Earth's atmosphere at a particular time and place is called __________ | weather |
| What is Earth's atmosphere? | envelope of gases that surrounds the planet |
| How much of the atmosphere is nitrogen? | 78% |
| How much of the atmosphere is oxygen? | 21% |
| How much of the atmosphere is all other gases? | 1% |
| What percentage of air is made of nitrogen and oxygen together? | 99% |
| T or F: Carbon dioxide alone makes up almost 1 percent of dry air | false |
| What particles does air contain? | tiny solid and liquid particles of dust, smoke, salt, and other chemicals |
| Water in the form of a gas is called ______ | water vapor |
| T or F: Water vapor is the same as steam | false |
| JUST TO REMEMBER | If mass increases and volume stays the same then density increases, and same for decreases but if mass stays the same and volume decreases then density increases, same the other way around. |
| An instrument that is used to measure air pressure is a ____________ | barometer |
| Two different units used to measure air pressure are ____________and ____________ | inches of mercury, millibars |
| Another word for elevation, or distance above sea level, is ________ | altitude |
| T or F: Air pressure increases as altitude increases | false |
| T or F: As air pressure, decreases, so does air density | true |
| T or F: As altitude increases, so does air density | false |
| The four main layers of the atmosphere are classified according to changes in __________ | temperature |
| T or F: The troposphere contains almost all of the mass of the atmosphere | true |
| T or F: As altitude increases in the troposphere, temperature also increases | false |
| T or F: At the top of the troposphere, the temperature stop decreasing | true |
| Where does the troposphere begin and end? | 0-14 km |
| Where does the stratosphere begin and end? | 15-50 km |
| Where does the mesosphere begin and end? | 51-80 km |
| Where does the thermosphere begin and end? | 81-550 km |
| Name the layers of the atmosphere in order | troposphere, stratosphere, mesosphere, thermosphere, exosphere |
| Where does the exosphere begin and end? | 551 km- thousands of km into space |
| What are the two layers of the thermosphere and where do they begin | ionosphere- 80 km. and exosphere- 400 km |
| Brilliant light displays that occur in the ionosphere are called the | aurora borealis or northern lights |
| Where is ozone found? | the stratosphere |
| What is the coldest layer? | the mesosphere |
| What layer does weather occur in? | the troposphere |
| The brown haze that forms over sunny cities like Los Angeles is called ________ | photochemical smog |
| T or F: One result of air pollution is acid rain | true |
| If mass increases and volume stays the same, then density_________ | increases |
| If mass _________ and volume stays the same, then density decreases | decreases |
| If mass stays the same and volume decreases the density __________ | increases |
| If mass stays the same and volume __________ then density decreases | increases |
| Two different unit used to measure air pressure are __________-- and _____________ | inches of mercury, millibars |
| T or F: Air pressure increases as altitude increases | false |
| T or F: As air pressure decreases, so does air density | true |
| T or F: As altitude increases, so does air density | false |
Created by:
maddiefranciscan
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