Pbs Learning Media: Cloud Age Two

Set variables for a simulated collision and observe the changes in reaction between two carts. Options include changing the weight of one cart and the type of collision to occur.

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...

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.

This video segment adapted from NASA's Goddard Space Flight Center explains how and where hurricanes develop. Learn how El Nino events alter the course of atmospheric circulation. Includes background reading material and discussion...

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]

This animated essay from "American Experience" explains the difference between alternating and direct electric current and offers in-depth explanations about the role played by a battery, light bulb, wire, and generator. [2:27]

Thawing permafrost can have devastating effects for a region. It can lead to the ground becoming unstable, landslides, and sinking. This video shows some effects of thawing permafrost in Fairbanks, Alaska, and provides a glimpse of what...

Are three seemingly separate volcanoes in Iceland actually connected to each other? For the first time, scientists can study a volcano from the inside and find out that these volcanoes are actually connected. Find out how in this video...

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...

This video segment adapted from NASA's Goddard Space Flight Center details some of El Nino's far-reaching effects on both marine life and humans. [2:44]