University of Illinois
University of Illinois Extension: Ww2010: Atmospheric Pressure
This site from the University of Illinois describes what air pressure is and how it is measured. Explains high and low pressure areas, isobars, and how pressure changes with height.
University of Illinois
University of Illinois Urbana Champaign: Observed Dew Point Temperature
Describes what dew point is and how it relates to moisture content of the air. Also explains condensation and relative humidity.
TeachEngineering
Teach Engineering: Stormy Skies
Young scholars learn that wind and storms can form at the boundaries of interacting high and low pressure air masses. They learn the distinguishing features of the four main types of weather fronts (warm fronts, cold fronts, stationary...