| A | B |
|---|
| When water is warmed it | evaporates |
| When water evaporates, it rises into the sky as | water vapor |
| When water vapor strikes cool air it | condenses |
| When water vapor condenses it | forms tiny droplets of water |
| Tiny droplets of water collect upon | dust particles in the air |
| When water droplets collect on dust particles they form | clouds |
| After more condensation takes place in the cloud, moisture falls as | precipitation |
| Four forms of precipitation | rain, snow, sleet, hail |
| The weather you might expect if a high pressure is headed your way | fair weather |
| Wind blows because of | high and low pressure systems |
| low clouds that cover the whole sky are connected with rain or snow | stratus |
| white fluffy clouds | cumulus |
| high wispy clouds formed by ice crystals | cirrus |
| means "rain cloud" | nimbus |
| means a thunderstorm is coming | cumulonimbus |
| a strong wind over the ocean | hurricane |
| where two air masses meet | front |
| abbreviation for clear | clr |
| abbreviation for outlook | otlk |
| funnel cloud | tornado |
| instrument that measures relative humidity | sling psychrometer |
| one who studies weather | meteorologist |
| measures the amount of precipitation | rain gauge |
| measures air pressure | barometer |
| measures relative humidity or vapor | hygrometer |
| measures wind speed | anemometer |
| measures amount of heat | thermometer |
| shows wind direction | weather vane |
| the process of liquid water changing to water vapor is called | evaporation |
| the constant movement of water between earth and atmosphere | the water cycle |
| gaseous state of water | water vapor |
| the process of water vapor changing to liquid water | condensation |
| any form of moisture falling to earth | precipitation |
| millions of condensed water droplets floating in the sky | clouds |
| Air has weight and pushes on things. This is called | air pressure |
| the earth's revolvement around the sun and tilt on its axis causes | seasons |
