With this resource, users join investigators in the exploration of humans' use of and dependence on the many energy resources. Learn about new technologies such as carbon capture and sequestration as an alternative to reduce our carbon...

Interdisciplinary multimedia course, in thirteen units, on environmental science. Each unit encompasses a thirty-minute video, an accompanying textbook chapter, and an array of visuals and animations. With five interactive labs, a...

Features a collection of hands-on activities, investigations, and explorations designed to engage students in learning about ice, both in the solar system and on planet Earth.

From the "Journey to Planet Earth" series, PBS takes a look at the world's exploding urban population. Includes video clips and educational resources.

The innovative resource examines images of the Sun, Moon, Pluto, and all eight planets in the Solar System. Learners calculate the diameter of each object and rank the objects in order of size. The activity has an interactive online...

Learn about water as a precious resource in danger of being depleted. Understand the roles that overuse and agricultural use play in the sustainability efforts of this essential resource. Includes video. [28:25]

This is an extensive learning module on biodiversity and its decline. It looks at ways biodiversity is threatened, the possibility of another mass extinction, the causes and consequences of habitat loss, factors that drive biodiversity...

Create the parameters of your own ecosystem by choosing which producers and consumers live there. Visualize how the food web operates and species populations change. This simulator mimics the food web within a typical ecosystem and gives...

This image, titled "Is There Anybody Home?" features six fuzzy pictures depicting six stars associated with known planets. The text under the image details various specifics about the picture and the planetary system associated with the...

Discusses the information from the NASA spacecraft Messenger as it orbits Mercury and transmits photographs of the planet's surface to Earth.

Read about our solar system and its formation over 4.6 billion years ago. Find out about the planets, asteroids, meteors, satellites, and comets. More in-depth planet background can be accessed through links.

This image, titled "Planet Clumps and Crystals around Brown Dwarfs" features a chart representing four brown dwarf stars. The text under the image details various specifics about the picture.

Earth's temperature depends on the balance between energy entering and leaving the planet's system . When incoming energy from the sun is absorbed by the Earth system, Earth warms. When the sun's energy is reflected back into space,...