Weather

Weather

Your test next Monday/Tuesday will cover air masses, weather fronts, high/low pressure systems, weather instruments, convection currents and global winds.

Multiple Choice

What is weather? Think of how it's different from CLIMATE, how many different things make up "weather."

• The state of the atmosphere at any particular time.

• The number of clouds in the sky.

• The amount of moisture in the air.

• Average temperature patterns over a long period of time.

The next few slides will ask you to determine what kind of air mass is being described.

Multiple Choice

The red arrows represent warm air masses coming up from the equatorial region. What is the name that refers to these warm air masses?

• polar

• maritime

• tropical

• humid

Multiple Select

What type of air mass is represented by the arrow?

CHOOSE TWO!!

• continental tropical

• maritime tropical

• warm and dry

• warm and wet

Multiple Select

What type of air mass is represented by the red arrows?

CHOOSE TWO.

• continental tropical

• maritime tropical

• warm and wet

• warm and dry

Multiple Select

What type of air mass is represented by the blue arrows?

CHOOSE TWO.

• maritime polar

• tropical maritime

• cold and wet

• warm and wet

Multiple Select

What type of air mass is represented by the blue arrow?

CHOOSE TWO

• continental polar

• maritime polar

• Very cold and dry

• Very dry and very warm

Multiple Choice

What do we know about this air mass?

• Since it's cold, it has traveled from the north.

• Since it's dry, it has traveled over land.

• It moves more quickly than a warm air mass.

• all of the above

Multiple Choice

Looking at this image, what do you know about both of the air masses?

• Neither of them originated from the polar region.

• Neither of them is a maritime mass.

• The purple air mass (very cold and dry) is very humid.

Weather Instruments

The next few slides deal with recognizing the purpose of the different weather instruments.

Multiple Select

Which of these instruments can measure the exact SPEED of wind?

Multiple Select

Which instruments can measure wind direction?

• wind vane

• anemometer

• barometer

• wind sock

Multiple Choice

Which device measures air temperature?

• barometer

• thermometer

• thermosphere

• hygrometer

Weather Fronts

Do you know the difference between the four weather fronts?

Multiple Choice

What kind of weather front is this?

• cold front

• warm front

• stationary front

• occluded front

Multiple Choice

Which front results from a cold air mass invading a warm air mass, pushing it up and out of the way?

Multiple Choice

What kind of front is this?

• cold front

• warm front

• stationary front

• occluded front

Multiple Choice

What happens when a cold air front OVER-TAKES a warm air front, leaving two different cold fronts adjacent to each other?

• cold front

• warm front

• stationary front

• occluded front

Multiple Choice

What kind of front is this?

• cold front

• warm front

• stationary front

• occluded front

Multiple Choice

What kind of weather front is this?

• cold front

• warm front

• stationary front

• occluded front

Multiple Choice

What kind of weather would you expect this front to bring?

• warm weather

• cold weather

• rainy weather

• snowy weather

Scenarios

Analyze each situation.

Multiple Choice

Ryan hears on the news that there is a high pressure system over his city. What item should he take with him to the park?

• raincoat

• sunglasses

• snow boots

• umbrella

Multiple Choice

Charlie observed the sky one morning and noticed it was full of stratus clouds. What weather prediction should he make?

• light rain or drizzle

• heavy rain and hail

• strong thunderstorms

• very low chance of rain

Multiple Choice

Marco says he thinks there might be a thunderstorm soon. What evidence might he be using to make this prediction?

• He notices that the cirrus clouds are thinning.

• He notices that the cumulous clouds are getting larger/taller.

• He notices that the clouds are low, gray and flat.

• It's getting really foggy.

Multiple Choice

The weather forecaster says that the weather will be sunny and dry. What atmospheric condition would support this claim?

• high humidity

• high air pressure

• low air pressure

• high precipitation

Weather Maps

The next few questions will ask you about what kinds of information you can learn from a weather map.

Multiple Choice

What do you call the type of scientist who studies weather forecasts and makes predictions regarding weather conditions?

• fortune teller

• a good guesser

• psychic

• meteorologist

Multiple Choice

Which city (A, B or C) is most likely to be clear and quiet?

• A

• B

• C

Multiple Choice

Which city is about to have a cold front?

• Los Angeles

• El Paso

• Memphis

• Chicago

Multiple Choice

Which city is about to have a warm front?

• St. Louis

• Billings

• Denver

• Atlanta

Take your time...

The next one can be tricky...don't be in too much of a hurry to guess.

Multiple Choice

Based on the weather map, which city will most likely experience decreasing temperatures during the next 24 hours?

• Houston, because it is in a high temperature area

• Atlanta, because a warm front is approaching

• Minneapolis, because a cold front is approaching

This one, too...

Remember, a forecast is WHAT IS TO COME... What will the weather be like in the near future...not what is it like now?

Multiple Choice

What weather would you forecast at city A?

• clear skies and warmer temperatures

• thunderstorms followed by cooler temperatures

• thunderstorms followed by warmer temperatures

Get ready for Global Winds...

Multiple Choice

What causes global winds?

• Unequal heating of the earth's surface

• Earth's rotation

• both a & b

Multiple Choice

What winds does this picture show?

• Polar Easterlies

• Trade Winds

• Jet Streams

• Global Mega Winds

Multiple Choice

Winds occur because hot air rises and cool air sinks in a process called

• conduction

• radiation

• convection

• magnetism

Multiple Choice

The winds that surround the equator (between 30 degrees north and 30 degrees south) that blow in a westerly direction are called...

• Polar Easterlies

• Polar Westerlies

• Trade Winds

• Jet Streams

Multiple Choice

What kind of weather is associated with high pressure systems?

• clear, dry weather

• cloudy, wet weather

Multiple Choice

Cloudy, wet weather is associated with what kind of pressure system?

• high pressure system

• low pressure system

Multiple Choice

When cool air sinks over an area, what kind of pressure system is this?

• high pressure system

• low pressure system

• Under Pressure by Queen and David Bowie

• Intense pressure

Multiple Choice

Describe a low pressure system.

• warm air is rising

• cold air is sinking

• warm air is sinking

• cold air is rising

Multiple Choice

What kind of pressure system is there at both the north and south pole?

• High pressure because it's so cold.

• Low pressure because it's so cold.

Multiple Choice

True or False: Air always wants to travel from a low pressure area to a high pressure area.

• True

• False