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7.1 HW: Harbaugh
| Question | Answer |
|---|---|
| 1. weather | the atmospheric conditions, along with short-term changes, of a certain place at a certain time. |
| 2. air pressure | the pressure that a column of air exerts on the air, or surface, below it is air pressure. |
| 3. relative humidity | the amount of water vapor present in the air compared to the maximum amount of water vapor the air could contain at that temperature. |
| 4. dew point | the temperature at which air is fully saturated because of decreasing temperatures while holding the amount of moisture constant. |
| 5. precipitation | water, in liquid or solid form, that falls from the atmosphere. |
| 6. water cycle | the series of natural processes in which water continually moves among oceans, land, and and the atmosphere. |
| 1. what are two variables used to describe weather? | temperature and rainfall |
| 2. what are some of the variety of atmospheric conditions? | temperature, air pressure, wind speed and direction, humidity, cloud coverage, and precipitation |
| 3. what is the average kinetic energy of molecules in the air? | air temperature |
| 4. if air pressure decreases, what happens to the altitude? | increases |
| 5. what does barometric pressure mean? | air pressure |
| 6. what happens when areas of high pressure air moves to areas of low pressure? | wind |
| 7. when the humidity is high, is there more or less water vapor in the air? | more |
| 8. can warm air contain more or less water vapor than cold air? | more |
| 9. when the air near the ground becomes saturated, the water vapor condenses into what? | liquid |
| 10. when the temperature decreases, the air can hold more or less moisture? | less |
| 11. what is a cloud that forms near earth's surface? | fog |
| 12. do clouds absorb or reflect some of earth's incoming radiation? | reflect |
| 13. what can droplets in clouds form around in the atmosphere? | dust, salt, or smoke |
| 14. other than precipitation, what are two other important processes in the water cycle? | evaporation and condensation |
| 15. water vapor cools and rises in the atmosphere and condenses back into what? | liquid |
| 1. what are types of precipitation that are solid? (7.1) | sleet, hail, and snow |
| 2. what is precipitation in liquid form? (7.1) | rain |
| 3. what are the types of acid precipitation? (6.4) | acid rain, snow, and fog |
| 4. what is water vapor? (6.1) | water in gaseous form |
| 5. what is the difference between acid precipitation and normal rainwater? (6.4) | acid precipitation has a lower pH than that of normal rainwater |