Learn about all the different levels of ecosystems, from the living things under a rock, up to a rainforest biome. Explains the levels of organization within an ecosystem, the different types of biomes, food chains and trophic levels,...

Learn what renewable energy is, the different types, and why it's important to conserve energy.

Looks at water pollution, its causes and impact, what individuals and governments can do to combat it, and the process of treating wastewater.

This project shows how mathematical probability sometimes contradicts our intuition. Despite the fact that there are 365 days in a year, if you survey a random group of just 23 people there is a 50:50 chance that two of them will have...

Play a great interactive game where you become a fire manager and learn to deal with fire safety. Also, explore the lesson plans for presentation and the classroom.

The innovative resource compares snow and ice cover in the Northern Hemisphere over a period of 24 years. The images are obtained from satellite measurements of visible and microwave radiation. The activity has an interactive online...

Learners explore images of atmospheric ozone levels over the South Pole. The resource has students determine the months of lowest ozone levels and changes in ozone levels since 1979. The activity has an interactive online version and a...

Learners investigate images of Hurricane Katrina as it moved through the Gulf of Mexico in August 2005. The resource has students examine images, infrared radiation, water vapor, and visible radiation to plot and measure the path of...

Learners investigate the effects of zero gravity. The resource has students measure the change in the area of calf muscle from before and after the flight to determine if muscle loss has occurred. Some topics included are muscle loss,...

Contains plans for one 60-minute lesson that teaches about a reading strategy called Character Perspective Charting. In addition to student objectives and standards, these instructional plans contains links to PDF handouts and links to...

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.

Read about the steps that Sweden is taking to move to completely digital currency. Includes video.

Read about the unusual characteristics of a pterosaur discovered in Utah. Includes video.

Article reports on the science behind being "hangry" - a term that refers to the grumpiness that often accompanies hunger. Includes video.

This site features the works of Laura Ingalls Wilder.

The United States Department of Agriculture home page for kids. Links to many activities and learning sites.

Earth Day is a worldwide celebration held annually on April 22nd. The purposes of Earth Day, the history of and the various activities held around the world are described. Activities and projects that can be done daily or year round are...

This interactive activity from the Adler Planetarium explains the "reasons for the seasons." Featured is a game in which Earth must be properly placed in its orbit in order to send Max, the host, to different parts of the world during...

This lesson takes a look at the history of the presidential cabinet, how the cabinet is built through the confirmation process, and why this elite group of people matters to you.

For elementary students, this booklet of activities teaches basic money skills and concepts. Includes lesson plans.

Students will examine Vincent van Gogh's self-portraits and letters to better understand the artist's life story and personality. They will paint two Van Gogh-style self-portraits to show two parts of their own personality and write a...

In this lesson plan, students will consider "Lascaux: La Vie en Caverne!." The plan includes worksheets and other student materials that can be found under the resource tab.

A scanned copy of the 1852 publication of Be True by Mary H. Maxwell, a fiction book for children.

A scanned copy of the 1852 publication of Bo-Peep Story Books, a fairy tale book for children.