Why Don't Whales Have Legs?
Young scholars are given a variety of materials and are asked to design a heat loss experiment that results in a reasonable explanation of "Why don't whales have legs?" students work with the theory of natural selection.
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Got Lactase? The Co-Evolution of Genes and Culture
Does the human body evolve as quickly as human culture? With a stellar 15-minute video, explore the trait of lactose intolerance. Only about 1/3 of human adults seem to still have the enzyme lactase and therefore, the ability to digest...
8th - 12th Science
New Review Freezing Point Depression: Why Don’t Oceans Freeze?
Can you go ice fishing in the ocean? Learners examine the freezing point of different saltwater solutions. Each solution has a different concentration of salt. By comparing the freezing points graphically, they make conclusions about...
9th - 12th Science CCSS: Adaptable
Tardigrades: Adorable Extremophiles
Tardigrades are microscopic organisms (0.5 mm long) with segmented bodies and four pairs of legs, each with four to eight claws. The narrator of this video explores tardigrades, organisms that can survive the most extreme environments...
4 mins 9th - 12th Science CCSS: Adaptable
Could We Actually Live on Mars?
What would be the best place to live on Mars? A fascinating look at the geographical of Mars is sure to intrigue the future astronomers in your middle or high school class. A short video introduces learners to the different...
4 mins 7th - 12th Science CCSS: Adaptable
New Review Why Do Animals Have Such Different Lifespans?
Is it true that larger animals have longer lifespans than smaller animals? Does an animal's habitat help shape the length of its life? And does the ability to adapt and evolve allow living things to expand their lifespans? Watch a video...
5 mins 6th - 12th Science CCSS: Adaptable