Site recounts how X-rays were discovered as well as who discovered them. Offers graphics, links to facts on this topic, a quiz, and teacher resources.

Where is our Solar System? How far away is the sun? What makes up the sun? Find out all you want to know about our solar system. This is a comprehensive on-line site about space and astronomy. Check out all of the excitement!

This site from the Astronomy Department of Cornell University provides brief introduction to both solar and lunar eclipses. Links are provided for pictures and charts of the eclipses, and this is a good site to check out on the subject.

There are eight planets in orbit around our Sun. These planets form our solar system. The eight planets are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. There are also rocks, moons, comets, and other objects going...

An introduction to our solar system: the planets, our Sun and our Moon. Students begin by learning the history and engineering of space travel. They make simple rockets to acquire a basic understanding Newton's third law of motion. They...

[Free Registration/Login Required] An informational text about outer space. A question sheet is available to help students build skills in reading comprehension.

"Learning about the Solar System" is a one page, nonfiction, reading passage about the Milky Way gallaxy and how scientists learn about it over time. It is followed by questions which require students to provide evidence from the story;...