Weather

A front is

• where warm air is cooling at earth's surface
• a boundary where hot and cold air are separating
• a boundary where two different air masses meet
• where cold air is rising and forming rain clouds

Air masses are named for ______.

• the type of air they contain 
• animals
•  people
•  where they form 

A cold front usually brings what kind of weather?

• snow  
• sunny and fair
• heavy rain and/or thunderstorms 
•  cool and dry 

What is the purpose of a barometer?

• Tells you that it is going to rain.
• Measures the amount of wind.
• Measusres the amount of clouds in the sky.
• It measure the amount of pressure in the air.

Ryan is working on his Science Fair project. He plans to measure the amount of rainfall that has fallen in his neighborhood over the past two weeks. What instrument should he use?

• Rain gauge
• Wind Vane
• Barometer
• Thermometer 

What kind of pressure predicts clear weather?

• high
• low
• cold
• stationary

In order for a hurricane to form, the water must be ________.

• Cool
• Warm
• Cold
• Hot

What causes wind to blow?

• Differences in longitude 
• Shock waves from clouds 
• Differences in air temperature and pressure 
• The rotation of the earth

Which term best describes how the earth's atmosphere is heated?

• Spirally
• Unevenly
• Circularly
• Kinetically

Differences in air pressure cause wind.

• True

• False