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7.1 homework: Dyer
| Question | Answer |
|---|---|
| Weather | the atmospheric conditions along with short term changes of a certain place at a certain time. |
| Air pressure | the pressure that a column of air exerts on the air or surface below it. |
| Humidity | the amount of water vapor in the air. |
| 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 temperture |
| Dew point | the temp at which air is fully saturated because of decreasing temps while holding the amount of moisture constant |
| Precipitation | is water in liquid or solid form that falls from the atmosphere |
| Water cycle | the series of natural processes in which water continually moves among oceans land and the atmosphere |
| The __________ energy powers the water cycle | sun's |
| Rain,_______,sleet,and hail are forms of precipitaton | snow |
| increasing air pressure comes from having __________ molecules | more |
| What is the atmospheric conditions, along with short-term changes, of a certain place at a certain time? | weather |
| What are just two types of variables used to describe weather? | temperature and rainfall |
| The measure of the average __ of molecules in the air temperature is called what? | kinetic energy |
| The pressure that a column of air exerts on the air, or surface, is called what? | air pressure |
| As air moves from areas of high pressure to areas of low pressure, it creates what? | wind |
| The amount of water vapor in the air is called what? | humidity |
| The amount of water vapor present in the air compared to the maximum amount of water vapor in the air could contain at that temperature is called? | relative humidity |
| What is measured using an instrument called psychometric and is given as a percent? | relative humidity |
| When what becomes saturated with water vapor, the water vapor will condense and form water droplets? | air |
| What point is the temperature at which air is fully saturated because of decreasing temperatures while holding the amount of moisture constant? | dew point |
| When the cooling air reaches its dew point, what condenses on small particles in the air and form droplets? | water vapor |
| What are water droplets or ice crystals suspended in the atmosphere? | clouds |
| What is water, in liquid or solid form, that falls from the atmosphere? | precipitation |
| What is the series of natural processes in which water continually moves amount oceans, land, and the atmosphere? | water cycle |
| What is a mixture of dust, acids, and other chemicals that can be hazardous to human health? | particulate matter |
| When sulfur dioxide and nitrogen oxides combine with moisture in the atmosphere and form precipitation that has a lower pH lower than that of normal rainwater is called? | acid precipitation |
| Gases and particles in the atmosphere absorb how much percent of incoming solar radiation? | 20 |