Vocabulary Words
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each of the black spaces below before clicking
on it to display the answer.
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| Weather | the atmospheric conditions, along with short-term changes, of a certain place at a certain time
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| Air Pressure | the pressure that a column of air exerts on the air, or surface, below
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| Humidity | the amount of water vapor in the air
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| 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
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| Dew Point | the temperature at which air is fully saturated becuase of decreasing temperatures while holding the amount of moisture constant
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| Precipitation | water, in liquid or soli form, that falls from the atmophere
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| Water Cycle | the series of natural processes in which water continually moves among oceans, land, and the atmosphere
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| 1) What is "weather"? | The atmospheric conditions, along with short-term changes, of a certian place at a certain time.
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| 2) What are two variables for describing weather? | Temperature and rainfall
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| 3) What is a "variable"? | A quantity that can change
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| 4) What is the measure of the average "kinetic energy" of molecules in the air? | It's "air temperature"
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| 5) What is "air pressure"? | The pressure that a column of air exerts on the air, or surface, below
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| 6) When meterologist say "barometric pressure", what do they refer to? | Air pressure
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| 7) As air moves from areas of high pressure to areas of low pressure this is called what? | Wind
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| 8) What is "humidity"? | The amount of water vapor in the air
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| 9) The amount of water vapor present in the air compared to the maximum amount of water vapor the air could contain at that temperature is called what? | Relative Humidity
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| 10) How is "relative humidity" measured? | With an instrument called a "psychrometer".
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| 11) What is "dew point"? | The temperature at which air is fully saturated because of decreasing temperatures while holding the amount of moisture constant
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| 12) Water droplets or ice crystals suspended in the atmosphere are what? | Clouds
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| 13) What is "fog"? | A cloud that forms near Earth's surface
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| 14) Water, in liquid or solid form, that falls from the atmosphere is called what? | Precipitation
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| 15) What is "rain"? | Precipitation that reaches Earth's surface as droplets of water
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| 1. Rain is made out of H2O, and H2O is made out of molecules. What are molecules? | Two or more atoms that are held together by chemical bonds and act as a unit
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| 2. What state is rain in? | A liquid state
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| 3. Since rain is H2O, what is the atomic number for H and for O? | H=1 , O=8
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| 4. Since H2O is a chemical bond. What is a "chemical bond"? | A force that holds two or more atoms together
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| 5. A "chemical equation" is a discription of a reaction using element symbols and chemical formulas. Is H2O a chemical equaation? | No
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