Eighty-four percent of people have an irrational fear. This video focuses on a fear of spiders. It explains the different types of fear, the conditioning that creates fear, and the evolutionary advantage to these fears. It doesn't just...

Art forgeries are works of art themselves? How can inspectors tell real art from fake? A video from the a large science playlist explores the techniques practiced by expert forgers and the subtle science behind telling a masterpiece from...

There's nothing regular about them—irregular verbs turn out to be the most common verbs in the English language. Through an analysis of data, learners discover that Zipf's Law describes the patterns of word usage. 

Do you know what doesn't stink? This resource! The video explains how people can smell, when they start smelling, and the changing idea of how many different smells individuals can identify. It introduces the concept of olfactory...

The science of marathon running is the subject of a resource that begins with the history of the marathon and why it is 26.2 miles long, and then goes into the biology in our bodies and the way our muscles, bones, and other physical...

Humans are the only mammals who delay sleep. Viewers learn this and other interesting facts in a video that explores sleep in humans. The narrator also discusses how lights affect our sleep, the importance of sleep, and how...

Ready to take your class on a journey through space and witness epic battles? A video segment portrays the true way space battles happen, complete with the way Hollywood handles the lack of gravity, even while firing missiles at the...

Attract learners to science by studying largest magnet in the galaxy. The video explains why the sun is technically a magnet and how the magnetic fields causes solar storms. It also covers the effects of solar storms on the earth such as...

Do you know what animal causes more than one million deaths each year? This terrifying animal and how it causes so much death is the subject of a video that also shares how humans can avoid it and the research scientists have conducted...

Scholars see how doctors first used placebos to help soldiers during WWII with pain. Viewers then see what placebos are and how effective they can be. The narrator reminds viewers that while placebos cannot cure everything,...

The poet Homer believed that birds went to battle tribes of goat-riding dwarfs during the winter. As the video explains, this myth and many others that seem crazy to us now, wasn't questioned for many years. The reality isn't quite as...

Dinosaurs owe their destiny to an asteroid. What are the chances humans will meet the same fate? A fascinating video lesson considers the probability of an asteroid colliding with the earth while taking into account variations in...

Travel through time to learn from some of the world's greatest scientists. The narrator of a thought-provoking video investigates the theories of Newton, Mach, and Einstein among others to determine if space itself is a thing. Viewers...

It turns out asteroids could be a gold mine—literally! An It's Ok To Be Smart video lesson describes the untapped resources orbiting our solar system. The presenter considers the possibilities of space colonies using these resources as...

Can you use a solid to study fluid dynamics? You bet! Science scholars examine the process of fluidization with a video from an extensive physics playlist. The narrator demonstrates and explains how the uniform movement of air causes...

Eyeballs or cameras—which have the best functions? The video presentations compare the important functions of the eyeball and the camera. As technology changes, cameras become more impressive, but the eyeball still out-functions the...

Earth's strangest creatures may be the key to finding life on other planets! Introduce biology scholars to the extreme world of extremophiles with a video from a large science playlist. From the depths of the ocean to the heart of the...

Change is good ... unless you're a tuatara! Meet Earth's oldest surviving reptile species in a fun video from an extensive science playlist. Content includes why the tuatara did not evolve and its unique anatomy.

From anteaters to zebras, why are both sexes equally represented in number? Explore a quirk in evolution with a video from a thought-provoking science playlist. The narrator shows examples of species that might only need a few males,...

Looking for instruction that seems more like wizardry? Look no further! Show your scholars some pretty amazing light experiments using a video from a comprehensive science playlist. The narrator performs and explains three simple yet...

Why do some people still question climate change? Discover the components of consensus with a video from a well-written science playlist. The narrator guides viewers through the process of reviewing climate publications, how exclusive...

Was Earth born as a Blue Planet? Discover where water came from with a video from an intriguing science playlist. The resource covers the three most likely origins of water, how scientists differentiate between comet and asteroid water,...

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...

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...