Thermometer: measures air temperature, usually contains alcohol or mercury because they expands when heated, Anemometer: measures wind speed, measures how fast the wind is blowing, usually made of small cups, Hygrometer: measures humidity, measures the amount of water vapor in the air, the highest this can read is 100%, Wind Vane: measures the direction of the wind, this tells what direction the wind is coming FROM, also known as a weather vane, Rain Gauge: measures precipitation, this will usually be empty during a drought, Barometer: measures air pressure, helps to predict a change in the weather, tells if air pressure is rising or falling,

Weather Tools Sort

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