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.

In this project, you'll learn how to isolate DNA from onion cells, separating it from other cellular components in a manner that still preserves its structure and sequence. In the end, you'll have enough DNA to see with the unaided eye,...

You're playing Monopoly with a friend, and you've already got Park Place and you really, really want to get Boardwalk. If you're on Pacific Avenue, what are the chances you'll reach your goal? Here's an easy project that will show you...

What does it take to launch a satellite to explore Mars, or a mission to the moon? This project has several possible variations for exploring the physics of rockets. This is rocket science.

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...

Microbes are everywhere in our environment, but for the most part they escape our notice. This project shows you how to safely culture and study common bacteria from your everyday surroundings.

Article reports on a new study that claims that the energy released from asteroid collisions may have sparked life on Earth. Includes a list of key vocabulary.

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,...

This lesson plan contains a PowerPoint and other downloadable resources on World War I and Alabama.

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.

The resource assesses students on British and metric conversions. There are tutorials on metric units, length, mass, volume, English units, symbols, and temperature. There is also an introduction and an interactive activity to test the...

This site features the works of Laura Ingalls Wilder.

[Free Registration/Login Required] This five-page PDF nonfiction passage "Nefertari's Tomb" by Alizah Salario discusses how the tombs of the Ancient Egyptians provide information about their culture. It is followed by 10 comprehension...

MediaSmarts provides digital and media literacy lessons for students. In this lesson, students will learn to watch and listen to a television with a critical lense

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