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,...

Despite seventy percent of the world's surface being covered with water, there is a potential shortage of this natural resource. Only a small percentage is fresh water and much of that is inaccessible or threatened. Learn about fresh...

Learn about the different kinds of forests, how forests are structured, their importance, deforestation and its impact, forest degradation, and what individuals can do to protect forests.

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

Looks at air pollution, its causes and impact, common pollutants, and what individuals and governments can do to combat it.

The element lead is a neurotoxin that is particularly dangerous to young children. Among other uses, lead compounds were common paint additives until being phased out for safer titanium-based additives beginning in the 1960's. Lead...

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...

If you like to play Tetris then you might like this project. You'll learn something interesting about the mathematics of complex shapes.

The human immune system has various ways of responding to an infection caused by bacteria or viruses. Our bodies produce proteins (antibodies) that are highly specific for the infectious agent as a part of our "humoral" immune response....

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.

A question-and-answer site giving information about the Anasazi, an ancestral Pueblo people. There is a discussion of their languages, farming methods, architecture, and use of astronomy.

A comprehensive guide to teaching Beverly Cleary's Ramona books. Includes material available as web pages as well as PDF formats. Also provides the words of Cleary herself when discussing characterization, as well as some unforgettable...

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.

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.

Several lesson plans available for grades K-8 that take a look at math and art. Each instructional activity includes printable resources, glossary of terms, an artist biography, and national math and visual arts standards.

Learners conduct a hands-on investigation to determine how matter, changing state, effects the property of weight. Students will collect data and graph their results. Resources include step by step instructions, a data worksheet, videos...

Students will build a food web diagram and illustrate the movement of matter through a series of food chains. Resources include detailed plans, examples of student work, videos of the lesson in action, and sample food webs.

Students will create a food chain model and use it to describe the movement of matter among plants, animals, decomposers, and the environment. Resources include a detailed lesson plan, student handouts, pictures of a completed chain,...

Individual or classroom activity helps students understand the solar system because they can visualize it. Extension resources are included.

A tutorial that looks at the components within a galaxy such as gas, dust, stars and objects that orbit stars. A PDF file of the tutorial is available.

A tutorial that describes the five factors that determine the weather in a particular place and time. The factors discussed in this tutorial are air temperature, air pressure, humidity, wind, and precipitation. A PDF file of the tutorial...

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