Fronts

​Fronts

Multiple Choice

What type of air mass is cP?

• Continental Polar
• Maritime Polar
• Continental Tropical
• Maritime Tropical

Multiple Choice

What type of air mass affects North Carolina's weather?

• Maritime tropical air mass
• Tropical continental air mass
• Maritime polar air mass
• Continental polar air mass

• boundary between air masses with different properties.

• bring changes in weather such as rain, snow, or thunderstorms.

Front:

• four main types

• Represented with symbols

​Warm Front

• ​warm air replaces cold air

• Warm air rises over cold air

  • creates clouds and steady precipitation

• represented by a line with semicircles

• cold air replaces warm air

• It brings cooler temperatures, gusty winds, and precipitation

• represented by a blue line with triangles

​

​Cold Front

Multiple Choice

What is a boundary between air masses?

• back
• front
• middle
• inside

Multiple Choice

What type of front brings steady, prolonged precipitation?

• Cold front

• Stationary front

• Occluded front

• Warm front

• ​A boundary between warm and cold air masses that is not moving, causing prolonged periods of precipitation.

Stationary Front

​prolonged periods of precipitation and cloudy weather

​This is the symbol for stationary fronts -->

• warm and cold air masses remain in place

• also lead to the formation of other types of fronts

• bring prolonged periods of precipitation and cloudy weather

​Occluded Fronts

• Warm air takes over cool air

• Cold air mass overtakes the warm front

• Warm air is lifted up as cold air meets cool air

• Heavy storms occur (cumulonimbus clouds)

​

Occluded fronts are represented by this symbol.

​Red for warm

​Blue for cold

Red and Blue in opposite directions for stationary

Purple for warm and cold mixed together

Multiple Choice

What type of front is formed when a cold front overtakes a warm front, lifting the warm air mass off the ground?

• Warm Front

• Cold Front

• Occluded Front

• Stationary Front

Multiple Choice

What is the leading edge of a cooler air mass that replaces a warmer air mass?

• Warm front

• Stationary front

• Occluded front

• Cold front

Multiple Choice

What is a stationary front?

• A boundary between two air masses that is not moving

• A boundary between two air masses that is moving rapidly

• A type of front that brings clear skies and calm weather

• A type of front that occurs only in tropical regions

Multiple Choice

What type of air mass forms over the ocean?

• Maritime air mass
• Tropical air mass
• Polar air mass
• Desert air mass

Multiple Choice

What type of air mass is mP?

• Tropical Polar
• Continental Polar
• Maritime Tropical
• Maritime Polar

Multiple Choice

What is the most powerful greenhouse gas in the atmosphere?

• Sulfur hexafluoride (SF6)
• Methane (CH4)
• Carbon dioxide (CO2)
• Water Vapor

  (H2O)

Multiple Choice

What type of front involves warm air overtaking cold air?

• Occluded front
• Stationary front
• Warm front
• Cold front

Multiple Choice

What layer of the atmosphere does weather occur?

• Mesosphere
• Troposphere
• Stratosphere
• Exosphere

Multiple Choice

What does the magnetosphere do?

• Causes earthquakes and volcanic eruptions
• Protects the planet from solar wind and cosmic radiation
• Creates the northern lights
• Regulates the Earth's temperature

Multiple Choice

What is the most outer layer of the atmosphere?

• Stratosphere
• Mesosphere
• Troposphere
• Exosphere

Multiple Choice

Where is the layer of the atmosphere that blocks out UV?

• Carbon layer
• Nitrogen layer
• Hydrogen layer
• Ozone layer

Multiple Choice

What is air pressure?

• The amount of oxygen in the air
• The speed at which air moves
• The temperature of the air
• The force exerted on a surface by the weight of the air above it.

Multiple Choice

Where is the ozone located?

• In the Earth's stratosphere
• In the Earth's atmosphere
• In the Earth's mantle
• In the Earth's core

Labelling

Label the fronts.

Drag labels to their correct position on the image

warm front

stationary front

occluded front

frigid front

solar front

cold front

mixed front

immobile front

Poll

If you were to take the test now, would you pass?

• There's a test?!

• Not really confident...

• Maybe...?

• Absolutely!