Chemicals from the Earth's atmosphere are making their way down to the planet. Not in spaceships, but in rain. The acid rain can infiltrate ground water, lakes, and streams. How does acid rain affect aquatic ecosystems?

Learn about the lives of stars, and how stars and planets form. The Interactive activity, 'Planet Families' requires Adobe Flash and cannot be launched.

Our home, Earth, is a living planet. Earthquakes and volcanic eruptions are proof that the geological forces that shaped our planet and created the land masses are ongoing. An amazing example of geologic activity that is less damaging is...

Everything on our planet is linked by a giant recycling system called the biogeochemical cycle. How our planet recycles and reuses everything we need to support life is explained by making a miniature biosphere in this lab. You will also...

Did you know that ancient astronomers could measure the distance to other stars? They could also distinguish between stars and planets. How could they do that without modern technology of telescopes? See if you can discover the link...

Earth's atmosphere, the ocean of air that blankets the planet, is mostly nitrogen and oxygen, with small amounts of other gases. How much oxygen is present in air at sea level? Is air high up in the Appalachians or Rockies? Atop Mount...

On a rainy day, do you ever wonder what the weather is like on the other side of the planet? Different regions around the globe can have very different seasonal weather patterns. In this experiment, you can test if these seasonal...

How do astronomers collect stardust? They design and build satellites that are launched into space to collect particles on specially designed panels. Satellites can be sent to orbit around an object of interest: a planet, moon, or comet....

Pizza, milk shakes, and ice cream sundaes all contain dairy products, therefore they cannot be eaten by the majority of people around the world. Dairy products contain the sugar molecule lactose, and the majority of people on the planet...

Find lesson plans, worksheets, photo galleries, and related links for teaching about the weather systems of planets in our solar system.

Find out about how planets have been classified historically, and what scientists use to study them.

Test your knowledge about the solar system with games and activities designed to help explore what you know about the sun, the planets and their moons, space rocks, the Milky Way, and related topics.

Created to teach students of the 21st century, SOPHIA is bringing Mars straight to your fingertips. Discover what scientific discoveries are occurring in the rest of the universe with this interactive tutorial.

From ABC News in Science, Irene Klotz's article discusses the findings of researchers and scientists related to the discovery of an "Earth-like planet" which is capable of supporting life.

From ABC News in Science, Maggie Fox's article explores a new string of "exoplanets" discovered orbiting distant stars. This research leads to numerous possibilities, one of which being the existence of planetary systems containing life...

What makes up the Solar System? Kid astronomers learn about the planets and the sun.

There are battles that are fought each day on the planet. The invading forces are those of viruses and bacteria. Left alone they would take over and destroy every cell! It is up to some key defense systems to battle and destroy these...

Read about our planet's only satellite, better known as the moon in this colorful, illustrated tutorial.

NASA site features a lesson plan that teachers can use to help their students see how far they are from each of the planets.

For this science lesson students will work collaboratively to learn and introduce the eight planets, sizes, characteristics, and their order. They will use size comparisons, research a planet, design a poster and create a PowerPoint...

Did you know you can see many satellites with the naked eye? Try this activity and find out for yourself!

This site is astronomy for kids and teachers! Here students can learn about the planet Earth of the Solar System including fun facts, mass, day, year, and distance from the Sun.

This activity is designed to accompany an interactive on the Annenberg Learner website. Students investigate the changes that take place in an ecosystem when they alter the organisms in a food web. As they work with the simulation, they...

Amazing Science looks at the Solar System with this FAQ site and lesson plan.