$100

$200

$300

$400

$500

$100

$200

$300

$400

$500

$100

$200

$300

$400

$500

$100

$200

$300

$400

$500

$100

$200

$300

$400

$500

$100

$200

$300

$400

$500

An air mass that forms over an

ocean is called?

A maritime air mass

What are lines joining places that have the

same temperature?

isotherms

Cool, clear weather usually follows a _________ front.

Cold Front

________________is a sudden spark or electrical

discharge, as electrical charges that jump

between parts of a cloud or between a cloud and

the ground.

Lightning

On a weather map,________________j

oin places on the map with the same

air pressure.

isobars

If you observe air pressure decreasing, what kind of weather do you think is coming?

Clouds and precipitation

A thermometer measures

Air Temperature

In Fahrenheit the freezing

point of water is….

32 degrees Fahrenheit

In Celsius the boiling point of

water is …

100 degrees Celsius

How are air masses

classified?

By Temperature and Humidity

A rapidly moving cold air mass meets a slowly moving warm air mass and forms a front. What will most likely occur at this front?

Cold air will slide under the warm air. Warm air will rise and cool and clouds will form.

What is the main way the

troposphere is heated?

Convection Currents

What are the three major global wind

belts?

Trade Winds, Polar Easterlies and the

Prevailing Westerlies

The two areas of calm are

The Doldrums and the Horse

Latitudes

The instrument used to measure

wind speed is called a

Anemometer

A scientist who studies the causes

of weather and tries to predict

weather is called a ______?

Meteorologist

Bands of high speed winds above the

Earth’s surface are called__________?

Jet Streams

The increased cooling that a

wind can cause is called

The Wind Chill Factor

What is the natural process where

gases hold heat in the air called?

The Greenhouse Effect

What is an air mass?

A large body of air that has similar temperature, humidity and air pressure throughout.

Name 4 types of fronts?

A. Warm

B. Cold

C. Stationary

D. Occluded

How are air masses moved in the US?

A. Jet Streams B. Prevailing Westerlies

A polar air mass has _____________pressure?

High

The boiling point of water in Fahrenheit is …

212 degrees fahrenheit

A cold air mass and a warm air mass meet and remain stalled over an area is a ____________________front.

Stationary Front

What causes winds?

Differences in air temperature and

pressure caused by the uneven heating of

the Earth’s surface

When a warm air mass slides over a cold air mass a _________front is formed.

Warm Front

When a warm air mass is caught between two cooler air masses a(n) _________ front is formed.

Occluded Front

Winds that are found between 0 and 30 degrees

latitude are called

Trade Winds

I am a front that brings light rain for

several days. ____________

Warm or Stationary

Winds that are found between

30 and 60 degrees latitude

are called

The Prevailing Westerlies

I am a front that brings severe

weather. (Heavy downpours, gusty winds and cooler temperatures)

Cold Front or Occluded

Front

Name this front?

Name this front?

Name this front?

Name this front?

Name this front?

Lower pressure usually Lower pressure usually means clouds, rain, or snow.means clouds, rain, or snow.

Higher pressure usually Higher pressure usually means nice, clear weather.means nice, clear weather.