See the world as it was—and also how it will be! A riveting video from a vast biology and earth science playlist takes viewers back in time to see how supercontinents formed, broke apart, and formed again. The resource includes a sneak...

Thermophiles and other microbes give hints as to how life can continue in extreme temperatures. Fossils in the Namibian Desert are relatively undisturbed and offer other keys to life. Your biology and earth science classes will want to...

Earth has four spheres. What are these spheres and what makes them unique? This is the focus of a video that describes what makes up two of the four spheres: the geosphere and biosphere.

If scientists could use biotechnology to bring back extinct species, should it? A thought-provoking video explores the technical and ethical considerations of this question as part of a larger biology playlist. It explains what would be...

Show learners how DNA transcription works with a video that details the step-by-step instructions required to copy genes, and how cells follow those instructions, via translation, to produce proteins and enzymes...

For thousands of years people have observed comets as they pass through the solar system, but could there be more to these celestial bodies than meets the eye? Watch this video to learn how these objects have recently been found to...

The first life on Earth developed in the oceans. As an introduction to ecology, the video starts with the formation of the earth. It follows with the Archaean and Proterozoic Eons including protobionts, prokaryotes, and eukaryotes. It...

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...

Address types of diversity, conservation biology, and restoration ecology. A video also includes small population conservation, declining population conservation, structural restoration, bioremediation, biological augmentation,...

Roly polies or pill bugs? No matter what you call them, these organisms are unique. Biology scholars discover a true evolutionary success story in a video about tiny, land-dwelling crustaceans. The narrator describes their journey from...

Charles Darwin studied many species, but he also hindered their continued study by eating his specimens. Like many sailors, he enjoyed the taste of the Galapagos tortoise so much for many years that no ship made it all the way back to...

Why do sweaty humans smell like onions and cumin? Explore antiperspirant and deodorant chemistry with a fact-filled video from the American Chemical Society's Reactions playlist. Topics include odor-causing agents, components of underarm...

Can someone really have a "biological clock"? Discover why many organisms on earth have an inherent awareness of where they are in the day's cycle.This video discusses animal adaptations, the earth's revolutions, and how light and...

Scientists try to understand the origins of life, and answers to these questions might be found during our lifetime. The fourth video in a 16-part series explains the earliest forms of life on Earth and their development. It covers...

Life before the dinosaurs was pretty amazing—and very fragile! Discover what Earth was like for Cambrian creatures, from the smallest ocean-dwellers to the first land animals. A video from an extensive biology playlist explores how early...

Is it possible to contaminate the planets our astronauts or rovers visit? With current technology, it is impossible to send a completely sterile rover to Mars, and there could be up to 30,000 different microbes on the space traveler!...

Viewers follow the paths of oxygen and carbon dioxide through the human respiratory organs and the path of the molecules through the human circulatory system, in a short video about how the body delivers oxygen and picks up...

Populations, communities, ecosystems, and biospheres are the subject of a video that investigates biomes and reveals that taigas, or boreal forests, are the largest biome, covering 17% of Earth's land surface. Viewers then explore how...

Is the Earth going to be hit by a giant asteroid? An earth science video begins with an update on various topics including volcanoes, asteroids, and ancient art. Then it briefly discusses the biological origins of intolerance.

Your class will not drift off to sleep during this episode on circadian rhythms. Though the narrator speaks quickly and continuously, he successfully explains our biological clock in a way that holds interest. Assign the viewing of this...

It's time to mix things up! Introduce biology scholars to the latest topic in marine research—invertebrates! The third installment in a five-part series of Invertebrates lessons explains the hypothesis that tiny, migrating shrimp are...

Discussions of DNA occur in Jurassic Park, X-men, Dexter, and CSI, yet many don't fully understand it. The video explains what DNA is, where it is located, and how it forms proteins. The chemistry of life becomes understandable through...

Guess where the oldest rocks on Earth are found? And what do these rocks reveal about the age of the earth?   Viewers of this short video analyze the age of the earth and explore the origin of life through geologic,...

A dynamic, three-part feature explores what caused mass extinction of the dinosaurs at the end of the Cretaceous period. Computer animations, interviews, and on-site footage from around the world divulge evidence that it was the K-T...