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Barometer

en.wikipedia.org/wiki/Barometer

A barometer is a scientific instrument used in meteorology to measure atmospheric pressure. Pressure tendency can forecast short term changes in the weather. Numerous measurements of air pressure ar...

How Do We Measure Air Pressure - Tree House Weather Kids ...

extension.illinois.edu/treehouse/airpressure.cfm?Slide=3

An instrument that measures air pressure is called a barometer. One of the first barometers was developed in the 1600s. The original instrument had mercury in  ...

What instrument is used to measure atmospheric pressure? | How ...

howthingsfly.si.edu/ask-an-explainer/what-instrument-used-measure-atmospheric-pressure

Sep 19, 2011 ... As air pressure increases—that is, as the air becomes heavier—it pushes ... of mercury in the tube provides a precise measure of air pressure.

How is air pressure measured? | Reference.com

www.reference.com/science/air-pressure-measured-8f19492e6ef943dd

There are several types of barometric instruments that measure air pressure. The first mercurial barometer, invented in 1643, consisted of an overturned glass ...

Measuring Atmospheric Pressure - Windows to the Universe

www.windows2universe.org/earth/Atmosphere/measuring_press.html

Jun 11, 2010 ... Even though we can't see air, it is real and has pressure. ... A barometer is a weather instrument used to measure atmospheric pressure.

Barometer Basics: How it Works and Helps Forecast Weather

weather.about.com/od/weatherinstruments/a/barometers.htm

Mar 29, 2016 ... A barometer is a widely used weather instrument that measures atmospheric pressure (also known as air pressure or barometric pressure) ...

How a Barometer Measures Air Pressure - USATODAY.com

usatoday30.usatoday.com/weather/wbaromtr.htm

The centers of storms are areas of relatively low air pressure, compared to ... The instruments that measure air pressure are called barometers, from Greek words ...

Make and Use a Barometer to measure Air Pressure - ciese

www.ciese.org/curriculum/weatherproj2/en/docs/barometer.shtml

Air pressure is the result of the weight of tiny particles of air (air molecules) ... Meteorologists measure these changes in the air to forecast weather, and the tool  ...

Measuring Weather | Temperature | Pressure | Humidity

www.weather-climate.org.uk/05.php

To ensure that the temperature of the surrounding air is the same as the ... An aneroid barometer is a more compact instrument for measuring pressure.

Word List: Definitions of Scientific Instruments - The Phrontistery

phrontistery.info/instrum.html

barometer, instrument for measuring air pressure. baroscope, weather-glass. bathymeter, instrument for recording contours of deep oceans. bathythermograph  ...

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Weather Instruments - Weather Wiz Kids weather information for kids

www.weatherwizkids.com

A BAROMETER measures air pressure. It tells you whether or not the pressure is rising or falling. A rising barometer means sunny and dry conditions, while a ...

What is the instrument used to measure air pressure? | Reference.com

www.reference.com

A barometer is the scientific instrument used by meteorologists to measure atmospheric pressure. There are three main types of barometers: mercury, aneroid ...

Instruments | Climate Education Modules for K-12

climate.ncsu.edu

Aug 13, 2013 ... I should already be familiar with: Temperature, Humidity, Pressure ... electronic temperature sensor is used to measure the outside air temperature. ... An anemometer is a type of weather instrument that measures wind speed.