Instructional Video12:33
SciShow

You Don’t Need to Worry About Yellowstone (or Any Other Supervolcano)

12th - Higher Ed
You’ve probably heard that the supervolcano under Yellowstone National Park is a ticking time bomb ready to go off at any time. But as it turns out, volcanologists aren't too worried about it.
Instructional Video3:58
NASA

North American Forest Dynamics Dataset

3rd - 11th
Forests are living, ever changing ecosystems, affected by aging, natural disasters and human interventions.
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Annual maps of the lower-48 United States produced from satellite data illustrate how these...
Instructional Video6:24
Be Smart

100,000,000 Years From Now

6th - 12th
Holocene, Pleistocene, Pliocene, Miocene, Oligocene, Eocene, Paleocene ... wait, did I miss one? PBS Digital Studios explains how human impact on Earth has potentially brought about a new epoch in geologic history, the Anthropocene....