20-Year Map of Global Rainfall

This visualization from NASA shows global rainfall patterns over a 22-year span. It incorporates data from a combination of remote-sensing and ground-based sources.

Chasing Tornadoes

In this video segment adapted from NOVA, scientists are on the hunt for tornadoes. Using Doppler radar, they gather data in the hopes of solving the mystery of how tornadoes form.

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Climate Change

This video segment adapted from NOVA explains the difference between weather and climate and features groundbreaking analysis revealing that Earth's climate has changed much faster than previously believed.

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Cloud Types

This interactive resource, adapted from NASA's S'COOL Project Tutorial, explains how you can classify and identify various types of clouds.

Compare and Contrast Warm and Cold Fronts

This visualization from McDougal Littell/TERC visualizes the movement of warm and cold fronts and the cloud types that are generated as a result.

Compare the Poles

Explore the defining features of the Arctic and the Antarctic in this interactive activity adapted from the Woods Hole Oceanographic Institution.

Earth as a System

This visualization adapted from NASA maps progressive global changes onto a rotating globe. Earth's atmosphere, hydrosphere, geosphere, and biosphere are shown to be dynamic and interconnected.

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Earth System: Drought and Air Quality

This video segment adapted from NASA's Goddard Space Flight Center discusses how a drought can have negative effects locally, for example by increasing the number of forest fires, and also globally, for example by impacting air quality thousands of miles away.

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Earth System: El Niño

This video segment adapted from NASA's Goddard Space Flight Center describes El Niño, how it forms, and the chain reaction of consequences it triggers around the globe.

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Earth System: Satellites

This video segment adapted from NASA's Goddard Space Flight Center shows how integral satellites are to everyday life and describes the different types, including orbital and geostationary.

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Everyday Radiation

How much radiation are we exposed to every day? Find out in this video segment adapted from FRONTLINE.

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A Five-Day View of the Jet Stream

This animation from NOVA Online lets you examine a five-day view of the jet stream.

Gallery of Auroras

View this stunning collection of auroral displays from NOVA Online to find out why auroras appear in different colors and shapes and whether they occur on other planets.

Giving Rise to the Jet Stream

This interactive activity from NOVA Online uses animation and graphics to offer a detailed explanation of the jet stream. A thorough account is given of the role played by the Sun's heat and Earth's shape and rotation, among other factors.

Global Warming and The Greenhouse Effect

This video excerpt from Race to Save the Planet discusses the greenhouse effect and global warming.

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Global Warming: Carbon Dioxide and the Greenhouse Effect

This video segment adapted from NOVA/FRONTLINE demonstrates the physical property of carbon dioxide that causes the greenhouse effect.

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Global Warming: The Developing World

This video segment adapted from NOVA/FRONTLINE looks at the future of global warming as developing nations, including India and China, increase their need for energy.

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Global Warming: The Physics of the Greenhouse Effect

This video segment adapted from NOVA/FRONTLINE examines the greenhouse effect, its role in keeping Earth habitable, and the industrial changes that have led to an increase in the planet's average temperature.

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The Great Flood of 1993

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.

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Great Ocean Conveyor Belt: Part II

A substantial increase in freshwater running into the northern Atlantic Ocean could dramatically affect climate and global ocean currents. This audio segment from National Public Radio presents viewpoints from scientists studying changes in ocean circulation.

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