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Oklahoma Mesonet

University of Oklahoma: High and Low Pressure

For Students 9th - 10th
This University of Oklahoma meteorology tutorial explores both high and low pressure systems--how they form and the different forms they take.
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Website
NASA

Nasa: Sci Jinks: What Is a Polar Vortex?

For Students 9th - 10th
Discover what a polar vortex is and how high and low pressure affects the weather.