Items Tagged as "teachers domain"

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In this Building Block video from the Building Big series, an ominous storm cloud hangs over a vast Roman skyline dotted with ancient domes and structures.

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In this video, environmental scientists measure the pH of water to detect acid mine drainage.

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In this Building Block video from Frontline: "Nuclear Reaction", the four cooling towers at the Three Mile Island nuclear power plant dot the horizon at sunrise. Smoke billows from the two towers on the left. The Susquehanna River lies in the foreground.

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This video segment, adapted from NOVA scienceNOW, presents basic concepts of physics behind "booming" sand dunes. See how surface tension affects potential and kinetic energy and how it all works together to create sound

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In this interactive simulation, explore the properties of projectile motion—the motion of an object thrown or projected into the air at an angle.

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How to identify a sugar maple by its branches, twigs, buds, and bark

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Using images and graphs, this interactive resource illustrates scientists' efforts to study Earth's climatic history for the last 250,000 years by drilling into the Greenland Ice Sheet and examining ice cores.

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This video segment, adapted from NOVA, explores reasons why Homo sapiens had an advantage over Neanderthals in the pursuit of territory and natural resources.

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These video segments adapted from NOVA contains drive-by footage of an Oklahoma town's business and residential districts that were ravaged by a passing tornado.

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This video segment adapted from NOVA/FRONTLINE demonstrates carbon dioxide's role in the greenhouse effect and explains how increasing concentrations of this gas in the atmosphere may be contributing to global warming.