WEATHER REPORTING INSTRUMENTS BY LEXI GREENBERGER

WHAT ARE WE MEASURING? We are measuring Wind We are measuring Wind Wind speed Wind speed Wind direction Wind direction We are measuring Precipitation We are measuring Precipitation Rain Rain Snow Snow We are measuring Air Pressure We are measuring Air Pressure High or Low? High or Low? We are measuring Temperature We are measuring Temperature Hot or Cold Hot or Cold

Why do we measure these things? We want to be able to predict and describe the weather We want to be able to predict and describe the weather It helps us plan what to wear It helps us plan what to wear It can help us avoid dangerous weather It can help us avoid dangerous weather It can tell how to care for plants and crops It can tell how to care for plants and crops

How does a thermometer work? A thermometer is a glass tube filled with liquid, usually mercury or alcohol A thermometer is a glass tube filled with liquid, usually mercury or alcohol The liquid expands when it is hot and shrinks when it is cool The liquid expands when it is hot and shrinks when it is cool The tube has numbers on it to tell you what the temperature is by measuring how much of the tube the liquid takes up The tube has numbers on it to tell you what the temperature is by measuring how much of the tube the liquid takes up

What is a cool way to measure wind speed at home The instrument used to measure wind speed is an anemometer The instrument used to measure wind speed is an anemometer You can make your own anemometer by gluing a ping pong ball to a string and tying it to a protractor You can make your own anemometer by gluing a ping pong ball to a string and tying it to a protractor By measuring the angle of the string on the protractor you can estimate the wind speed! By measuring the angle of the string on the protractor you can estimate the wind speed!

How do you measure precipitation Rainfall is measured by collecting rain in a rain gauge Rainfall is measured by collecting rain in a rain gauge Rain gauges are usually about 50 cm tall and are placed on the ground just high enough to avoid splashes Rain gauges are usually about 50 cm tall and are placed on the ground just high enough to avoid splashes Rain water is caught in a funnel on top, runs down into a cylinder below where it can be measured Rain water is caught in a funnel on top, runs down into a cylinder below where it can be measured

How do we measure air pressure With a Barometer With a Barometer It tells you if the air pressure is rising or falling It tells you if the air pressure is rising or falling A rising barometer pressure means sunny and dry weather A rising barometer pressure means sunny and dry weather A falling barometer pressure means stormy and wet weather A falling barometer pressure means stormy and wet weather

SOURCES Ehow.com Ehow.com Ecokids.com Ecokids.com Wizkids.com Wizkids.com Weather by: Brian Cosgrave Weather by: Brian Cosgrave

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