Air Masses
scaffolding activity teacher's guide


Air Mass #1 Air Mass #2
Type: continental polar air mass maritime tropical air mass
Origin: snow covered regions of northern Canada warm waters of the tropics and Gulf of Mexico
Temperature: cold temperatures warm temperatures
Winds: from the north-northwest from the south-southwest
Moisture: dry, little moisture moist, air is typically rich in moisture

2) and 3)

4) Answer would be determined by comparing the two diagrams.

5) Working with current weather data, so no answer key is available.

Terms for using data resources. CD-ROM available.
Credits and Acknowledgments for WW2010.
Department of Atmospheric Sciences (DAS) at
the University of Illinois at Urbana-Champaign.