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weather
| Term | Definition |
|---|---|
| clouds | a collection of millions of water droplets. |
| hydrometer | a tool used to measure the amount of water vapor in the air. |
| cirrus clouds | they are white and wispy with feathery edges. they indicate a sunny day, but sometimes they can be a sign of weather changing. |
| condensation | Water vapor cools down and condenses into water droplets. |
| rain | frozen precipitation falls down as rain. |
| freezing rain | frozen precipitation melts in warm air. rain falls and freezes on cold surfaces. |
| sleet | frozen precipitation melts in shallow warm air. then refreezes into sleet before reaching the surface. |
| snow | snow falls through cold air and reaches the surface. |
| rain gauge | a tool used to measure precipitation. |
| hail | rain droplets in clouds go up and down and when they go up and down they freeze and melt and when they get heavy enough, they fall down. |
| sea breeze | a local wind that blows from the sea to the land |
| land breeze | a local wind that glows on the land to the sea |
| anemometer | a tool used to measure wind speed |
| wind vane | a tool used to measure wind direction |
| global winds | wind that is high up in the sky |
| jet stream | a river of air high in the atmosphere |
| warm front | a front that produces, light, long lasting precipitation. Only produces rain or snow. |
| cold front | a front that brings thunderstorms. They bring short lasting, heavy precipitation. |
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