Arctic Climate System

Learn how the Arctic is a part of a global climate system in this video segment adapted from the National Film Board of Canada.

Accessibility features: Caption

Changes in the Ozone Layer

This video segment produced by ThinkTV demonstrates how ozone is created in the upper atmosphere, explains its beneficial role, and explores the problem of ozone depletion.

Accessibility features: Caption

Climate Models

In this video by ThinkTV, explore the many uses of climate models and see a visualization of a global climate model. Models are tools scientists use to see patterns and trends.

Accessibility features: Caption

Deep-Sea Vents and Life's Origins

Deep-sea vents are home to life forms that do not rely on the Sun's energy. They depend instead on energy from volcanoes on the ocean floor. This video segment adapted from NOVA hypothesizes that life on Earth may have begun in this extreme environment.

Accessibility features: Audio Description, Caption, Transcript

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.

Accessibility features: Caption

Earthquake! When Plates Collide

This video excerpt from NOVA explains the concept of plate tectonics and how it causes earthquakes.

Accessibility features: Caption, Transcript

Earth System: Ice and Global Warming

This video segment adapted from NASA's Goddard Space Flight Center explains ice's role in the Earth system, highlighting the delicate balance that could be upset with a continued rise in temperature due to climate change.

Accessibility features: Caption

Energy Sources

This video segment produced for Teachers' Domain illustrates a variety of energy sources used to generate electricity, some of which are in use and some of which are under exploration.

Accessibility features: Caption

Examine Global Surface Currents

This visualization from McDougal Littell/TERC visualizes the relationship between global wind directions and the direction of ocean surface currents.

Fracking

In this video segment adapted from Need to Know, learn about the controversial method of extracting natural gas known as hydraulic fracturing, or fracking, and how some residents who live near drill sites are concerned that it's polluting their water.

Accessibility features: Caption

Global Trends Quiz

In this interactive quiz from NOVA, take the Environmental Challenge and test your knowledge of human impact on the world's natural resources and climate.

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.

Accessibility features: Caption

The Grand Canyon: Ancient Mountains

This video segment adapted from NOVA features the twisted and melted forms of the Grand Canyon's oldest rocks, the 1.7-billion-year-old Vishnu Schist.

Accessibility features: Caption

Great Ocean Conveyor Belt: Part I

This image from GRID-Arendal depicts the major circulation pattern of the ocean, illustrating interactions between temperature, salinity, and depth.

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.

Accessibility features: Caption

Green Energy

This video segment from IdahoPTV's D4K describes renewable and non-renewable energy sources and the benefits and drawbacks of each. It provides some ideas about how you can personally conserve energy.

Accessibility features: Caption, Transcript

Infrared Gallery

How would your world look if you saw heat instead of light? In this interactive resource produced for Teachers' Domain, see what familiar objects look like through an infrared camera and watch infrared videos of geysers, mudpots, and hot springs.

Infrared: More Than Your Eyes Can See

In this video segment adapted from NASA, astronomer Michelle Thaller introduces the world of infrared light and demonstrates how infrared cameras allow us to see more than what the naked eye can perceive.

Accessibility features: Caption

Living With Earthquakes

Students will use some of the modern principles and ideas found in architectural design to create unique structures capable of withstanding the simulated forces of an earthquake.

A New Theory of Lightning

In this video segment adapted from NOVA scienceNOW, follow scientists as they test a new theory suggesting that lightning here on Earth is triggered by cosmic rays from far-away dying stars.

Accessibility features: Caption

Ocean Temperatures and Climate Patterns

This animation from The New Media Studio illustrates how the atmosphere and ocean together shape wind, current, and rainfall patterns in the tropical Pacific.

Accessibility features: Caption

Sea Level Viewer

In this interactive activity from NASA, investigate how satellite observations of sea level help scientists study climate and predict weather events.

Solar Wind's Effect on Earth

This video segment adapted from NASA describes solar storms and their effects on Earth. Animations of coronal mass ejections and solar cycles help explain what we know, and what we can predict, about solar activity.

Accessibility features: Caption

The Warming Trend and the Greenhouse Effect

This video segment produced by ThinkTV explains the greenhouse effect and its connection to the recent rise in Earth's average temperature. Scientists explore the role of human activity in the increase of greenhouse gases and the warming trend.

Accessibility features: Caption