Pbs Learning Media: The Reproductive Role of Flowers

Everything in our environment is interconnected. A change in one area causes a change in another area. Nowhere is this more evident than in our climate. NASA created a theoretical planet called "Daisy World" to show the complex system of...

In this video segment adapted from NOVA, a meteorologist explains how an unusual weather pattern led to one of the most devastating floods of this century. 3m 35s

This video segment adapted from NOVA/FRONTLINE demonstrates the physical property of carbon dioxide that causes the greenhouse effect. Includes background reading and discussion questions. [2:26]

Scientists study ice sheets because they influence weather and climate, playing a role in atmospheric and ocean circulation. Ice sheets can also have huge impacts on global sea levels because they store so much water. Explore this...

Learn about the role of dogs in the culture of Papua New Guinea in this video segment from Nature.

In this video segment from Nature, learn about the role of dogs in the Inuit culture.

An example of the Red Queen hypothesis, the sexual population of Mexican Poeciliid fish is able to keep up with a changing environment, while the asexual populations are not as successful. From Evolution: "Why Sex?" Video length: 4 min....

In this lesson, students watch a video and animations that relate Isaac Newton's three laws of motion to baseball and apply what they've learned about these laws to another sport or other real-life situation.

That raging fire in your belly is not necessarily the burrito you had for lunch! Aspiring doctors get an in-depth look at the cause of stomach ulcers with an interesting video. The narrator discusses ulcer treatments of the past, how...

Three choices of virtual worlds to enter: a vulture, a wolf or a shark world. Once inside these worlds view videos, play games, and discover the ecosystems of these wild animals.