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Polar Trec
Beacon Valley Weather
In Beacon Valley, katabatic winds regularly knock fit adults to the ground. The instructional activity compares the actual temperatures to the wind chill after factoring in katabatic winds in Beacon Valley. Scholars learn to calculate...
National Park Service
It Was a Very Good Year
Waterton-Glacier International Peace Park includes whitebark pines that are over 1,200 years old, meaning they have been there since before medieval times. The second lesson of five details how to read tree rings for climate change and...
Discovery Education
Sonar & Echolocation
A well-designed, comprehensive, and attractive slide show supports direct instruction on how sonar and echolocation work. Contained within the slides are links to interactive websites and instructions for using apps on a mobile device to...