In this Pan's highway worksheet, students read about the Cassini spacecraft that discovered how Pan clears out the ring debris in the outer A-ring system of Saturn. Students use an image taken by the satellite to find the scale of the...

In this creative writing worksheet, students answer a series of questions about an alien they imagine. There are also other pre-writing exercises about historical figures, monuments, a zoo, and other topics designed to aid in the...

This site from The Galileo Project of the Rice University provides a biography of Clavius including an excerpt from his writings. A picture is provided in this article along with links to additional information.