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THERMOMETER

THERMOMETER. Measures air temperature. Most thermometers are closed glass tubes containing liquids such as alcohol or mercury. When air around the tube heats the liquid, the liquid expands and moves up the tube. A scale then shows what the actual temperature is. Measures air pressure.

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THERMOMETER

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  1. THERMOMETER • Measures air temperature. • Most thermometers are closed glass tubes containing liquids such as alcohol or mercury. • When air around the tube heats the liquid, the liquid expands and moves up the tube. • A scale then shows what the actual temperature is.

  2. Measures air pressure. It tells you whether or not the pressure is rising or falling. A rising barometer means sunny and dry conditions A falling barometer means stormy and wet conditions. Barometer

  3. RAIN GAUGE • A rain gauge is a type of instrument used by meteorologists and hydrologists to gather and measure the amount of liquid or solid (snow, sleet, hail) precipitation over a set period of time. Standard Garden Rain Gauge

  4. Wind Vane • An instrument that determines the direction of the wind.

  5. Weather Maps • WEATHER MAPS indicate atmospheric conditions above a large portion of the Earth's surface. • Meteorologists use weather maps to forecast the weather.

  6. Weather Balloon • A WEATHER BALLOON measures weather conditions higher up in the atmosphere.

  7. Compass • A COMPASS is a navigational instrument for finding directions.

  8. Weather Satellites • WEATHER SATELLITES are used to photograph and track large-scale air movements. • Then meteorologists compile and analyze the data with the help of computers. • NOAA

  9. You…. • YOUR EYES are one of the best ways to help detect the weather. • Always keep an eye at the sky and you'll usually be on top of weather conditions.

  10. Weather Tools Review • Name That Tool… • Write 1-2 sentences explaining that tool.

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