Pbs: Nature: Frogs: The Thin Green Line

What sort of shoes do frogs wear? Open toad sandals. If your scholars want experience collecting field samples, this is the lesson for you. After learning the proper way to collect field samples, pupils catch amphibians to test for...

The living environment, from the interior of a cell to the complex relationships among populations, are queried in this final examination. Learners look at air pollution maps, diagrams of cells, population graphs, and drawing of cells....

Kilobots, made from only $15 worth of parts, work together to achieve a group goal. The video explains how with a few simple lines of programming, these tiny robots tackle tasks in much the same way animals or cells have for centuries....

Some insects breathe air yet live underwater. The video explains how they carry air with them and the scientific principles behind this ability. It focuses on beetles and surface tension as the concept of nature's scuba divers becomes...

What makes the green heron unique? Come and discover more about this aquatic bird when you explore this educational resource. This site includes information on diet, range, habitat, characteristics, behavior and life cycle.

This site created by NatureWorks focuses on the Green-Winged Teal. The content of this resource includes a look at this species' characteristics, range, habitat, diet, life cycle, behavior and photographs.

This video from Kentucky's Last Great Places shows how the Green River has remained unusually clean and why it is home to several endangered aquatic species. [4:13]

In this activity, students follow in Galileo's footsteps as they examine the nature of sunspot cycles, define solar minimum and solar maximum, and graph data for a solar cycle. Then they will predict the next solar maximum and when the...

There are 255 acres of fields, streams, forests and ponds. You can even buy their maple syrup on line, or take a virtual tour!

Students visit their city's traffic management center, tour the traffic signal control room and meet with Nick Van Gunst, a traffic engineer who shows them that the city's traffic light system is controlled by computers. They learn that...