Weather and Climate Activities to Explore the Atmosphere
Please note that all the applets on these pages use HTML5 and require an up-to-date browser!
These are also "touch-friendly" and will run on mobile devices. (Older Java and Flash versions are available here.)

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Friction and Fly Balls
Precipitation Type
Make a Thunderstorm
Lightning and Thunder
Satellite Images & Orbits
Grow Snow Crystals
Exploring Rainbows
Carbon Projections
Relative Humidity
Past Climates
Make a Planet
Sun Angle
Energy Model

Check out more applets at

Phases of the Moon

Acquire satellite data anywhere on the globe
Measure cloud top temperatures from IR images

Unless otherwise noted, all these applets are Copyright© 2013 by Tom Whittaker and Steve Ackerman at the University of Wisconsin-Madison. Many illustrations provided by Sue Medaris and the WhyFiles project. Supporting data provided by NOAA and NASA. Funding for the development of these applets was provided by several organizations and agencies.