Air Masses: Types and Characteristics — Passage

Grades
5
6
7
8
Standards
7.RI.7.1
PRINT+DIGITAL RESOURCE
This learning resource is available in interactive and printable formats. The interactive worksshet can be played online and assigned to students. The Printable PDF version can be downloaded and printed for completion by hand.
ABOUT THIS READER
Air masses are large bodies of air with similar temperature and humidity. They form over specific regions and influence weather when they move. Types include maritime tropical, continental tropical, maritime polar, and continental polar.
Publisher: Workybooks
|
Written by:Neha Goel Tripathi
|
Illustrated by:

Air masses are large bodies of air with similar temperature and humidity characteristics. They form over specific regions, such as oceans or deserts, and influence weather patterns when they move.

 

There are four main types of air masses:

  1. Maritime Tropical (mT): Warm and humid, forming over tropical oceans.
  2. Continental Tropical (cT): Hot and dry, forming over deserts.
  3. Maritime Polar (mP): Cool and moist, forming over cold oceans.
  4. Continental Polar (cP): Cold and dry, forming over polar land areas.

     

Air masses are classified based on their source region (maritime or continental) and temperature (tropical or polar). When air masses move, they bring their weather characteristics with them. For example, a maritime tropical air mass can bring warm, humid weather and rain, while a continental polar air mass can bring cold, dry weather and snow.

 

The interaction of air masses is a key factor in weather changes. For instance, when a warm air mass meets a cold air mass, it can lead to storms or precipitation.

 

Fun fact: The largest air masses can cover millions of square miles and influence weather across entire continents!

What is an air mass?

A small area of air with varying temperaturesA large body of air with similar temperature and humidityA type of cloudA weather front

What are the two factors used to classify air masses?

Wind speed and directionSource region and temperatureHumidity and precipitationAir pressure and altitude

What type of air mass is warm and humid?

Maritime TropicalContinental TropicalMaritime PolarContinental Polar

What type of air mass is cold and dry?

Maritime TropicalContinental TropicalMaritime PolarContinental Polar

What weather does a maritime tropical air mass bring?

Warm and humid weather with rainCold and dry weather with snowHot and dry weatherCool and moist weather

What happens when a warm air mass meets a cold air mass?

The weather stays the sameIt can lead to storms or precipitationThe air masses cancel each other outThe temperature drops suddenly

What is the fun fact mentioned in the passage?

Air masses can cover millions of square milesAir masses are always smallAir masses do not influence weatherAir masses only form over land

What type of air mass forms over polar land areas?

Maritime TropicalContinental TropicalMaritime PolarContinental Polar

Related Content

interactive | printable worksheet on CCSS 7.RI.7.1 - Measuring Carbon Stored in Vegetation - thumbnail
Measuring Carbon Stored in Vegetation
Measuring carbon stored in vegetation is crucial for understanding climate change. Plants absorb CO₂...
7.RI.7.1
interactive | printable worksheet on CCSS 7.RI.7.1 - Wind-Powered Trains In the Netherlands - thumbnail
Wind-Powered Trains In the Netherlands
The Netherlands is the first country to run all its electric trains on 100% wind power, thanks to wi...
7.RI.7.1
interactive | printable worksheet on CCSS 7.RI.7.1 - Four Ways Forests Affect the Atmosphere - thumbnail
Four Ways Forests Affect the Atmosphere
Forests play a vital role in regulating the atmosphere by absorbing CO₂, producing oxygen, cooling t...
7.RI.7.1
interactive | printable worksheet on CCSS 7.RI.7.1 - Air Temperature: A Key Weather Variable - thumbnail
Air Temperature: A Key Weather Variable
Air temperature measures how hot or cold the air is and is caused by the kinetic energy of air molec...
7.RI.7.1
interactive | printable worksheet on CCSS 7.RI.7.1 - Humidity: A Key Weather Variable - thumbnail
Humidity: A Key Weather Variable
Humidity measures the amount of water vapor in the air and is caused by evaporation. It is measured ...
7.RI.7.1
interactive | printable worksheet on CCSS 7.RI.7.1,RI.5.3,RI.5.5,RI.6.9,RI.6.3 - Cyclones and Anticyclones: A Comparison - thumbnail
Cyclones and Anticyclones: A Comparison
Cyclones are low-pressure systems that bring stormy weather, while anticyclones are high-pressure sy...
7.RI.7.1RI.5.3RI.5.5RI.6.9
Copyright © 2025 Workybooks. Made with ♥ in California.