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Collection: WGBH Educational Foundation
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- Abstract: This visualization from NASA shows global rainfall patterns over a 22-year span. It incorporates data from a combination of remote-sensing and ground-based sources.
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- Abstract: This video segment adapted from First Light explains why the highest peak in the Pacific, Mauna Kea, is an ideal site for astronomical observations. Featured are new telescope technologies that allow astronomers to explore the universe in more depth.
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- Abstract: This animated essay from the American Experience Web site explains the difference between alternating and direct electric current and offers in-depth explanations about the role played by a battery, light bulb, wire, and generator.
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- Abstract: In this video segment, the ZOOM cast demonstrates how to use cabbage juice to find out if a solution is an acid or a base.
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- Abstract: In this interactive activity from the ZOOM Web site, search for chemistry clues and experiment with acids and bases in a virtual kitchen.
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- Abstract: In this video segment, ZOOM cast members mix different amounts of baking soda and vinegar to see which combination produces the most carbon dioxide for launching a film-canister rocket.
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- Abstract: A car propelled by the reaction between lemon juice and baking soda has more in common with rockets and jet aircraft than one might think. In this video segment adapted from ZOOM, two cast members demonstrate the power of rocket-propelled vehicles and how to exploit the force produced by the carbon dioxide gas. Grades 3-8.
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- Abstract: It would seem that bottles of lemon juice and rockets have only their basic shape in common. However, as two cast members from ZOOM demonstrate in this adapted video segment, when baking soda is added to the mix, a plastic bottle can act very much like a real rocket. Grades 3-8.
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- Abstract: Our brains control every movement we make. Most of us take for granted our ability to pick up a cup or change the television station. However, for people who have lost a limb or become paralyzed, the inability to do these things means a loss of freedom and independence. This video segment from Greater Boston describes how neuroscientists and bioengineers have teamed up to create a system that allows people who have lost motor functions to control electronic devices through their thoughts alone. Grades 6-12
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- Abstract: Why did sex evolve? The likely answers, in this essay for the Evolution Web site by science journalist Matt Ridley, may surprise you.
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- Abstract: How does an airplane stay aloft when upside down? This media-rich essay from the NOVA Web site offers an explanation based on Newton's third law of motion.
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- Abstract: Using automobile crash test footage, this video segment adapted from NOVA shows some of the challenges in designing the air bag.
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- Abstract: This collection of still images presents different ways to visualize air, from billowing sails to windblown hair to tornadoes.
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- Abstract: In this video segment adapted from ZOOM, cast members experiment with the amount of air expelled first from a balloon, then through a straw attached to it, and see how both affect a balloon's behavior.
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- Abstract: In this video segment adapted from ZOOM, cast members make their own hovercraft and demonstrate how the air leaking out of a balloon can make a plastic plate hover above a table.
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- Abstract: Explore this NOVA interactive activity to see how engineers have modified a military plane's sound, shape, and heat emissions to minimize detection.
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- Abstract: These materials document the goals and activities of the Alabama Christian Movement for Human Rights; from the Birmingham Civil Rights Institute.
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- Abstract: In this Evolution Web feature, test your skills at judging who's who on the tree of life while you learn about the tools and methods of cladistics.
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