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What's the Hottest Hot and Coldest Cold?
When temperatures get extreme, physics gets a little weird! Show physics scholars the lowest man-made temperature to date, as well as the extreme heat of the Big Bang using a video from an extensive playlist. The narrator explains some...
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The Raisin Bran Effect
Everyone knows the smallest chips settle to the bottom of the bag, but why? An episode from a series of science videos describes the percolation effect using both demonstrations and animation. Scholars watch as smaller particles fill...
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The Deadliest Flu Season in History?
Is it possible for another flu outbreak like the Spanish Flu in 1918? A video lesson explains the factors that affect the spread of a virus and its effect on a population. The narrator describes the structure of the different virus...
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What Is Farthest Away?
It's difficult to believe in what you cannot see. A video presentation outlines evidence to convince scholars of the idea that there is no end to the universe. A video takes viewers on a trip through history to show learners how our...
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Where Do Teeth Come From?
Surprisingly, dinosaur teeth and human teeth have a lot in common. Scholars discover how teeth form during embryonic development. They then compare fossil evidence of the similarities of teeth of ancient species.
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What Do Raindrops Really Look Like?
Raindrops are more like pancakes than teardrops. Scholars learn the physics behind the shape of a falling raindrop in a video lesson presentation. An episode explains the forces acting on the droplet and how those forces change as it...
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Is Height All in Our Genes?
Humans on average are shorter than they were centuries ago. Young scholars analyze the factors that affect the height of individuals including historical trends in a video lesson. The presentation analyzes both genetic and environmental...
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3 Incredible Examples of Evolution Hidden in Your Body
Human traits trace back to simpler species—such as chickens, for example. Using the human genomes, scientists connect these traits to their ancestral origins. A video presentation highlights the structure of human DNA and makes a...
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Why Do We Cry Sad Tears?
Although some may be crocodile tears, crying is a distinct honor humans hold. Scholars learn the biological reason behind the emotional crying in a video lesson. The lesson instructor explores the anatomical and psychological connections...
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Which Life Form Really Dominates Earth?
Humans only make up 0.01 percent of all life forms on Earth. We sure know how to make an impact though! An episode of the It's Okay to be Smart series examines the proportion of different species that inhabit Earth. The narrator compares...
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It's Okay to Fart (The Science of Flatulence)
Like it or not, passing gas is part of life ... almost all life! Flatulence has many different purposes in different species including communication, defense, and buoyancy. Pupils learn where farts come from and what contributes to their...
American Chemical Society
How Is Leather Made?
Leather tanning is a chemical production! Scholars watch as a video outlines the chemistry behind processing leather. The instructor describes the chemical makeup of the leather itself and the structure of the chemicals that preserve the...
American Chemical Society
Why Don’t Antarctic Fish Freeze to Death?
Some fish not only survive but thrive in Antarctic waters. Learn their secret in a lesson in an informative video about the freezing point of the salty sea water as well as the antifreeze proteins in the species' circulatory system.