Here's a place to pursue topics in more depth than can be done in the classroom.
This is a page where you can find advanced material not found in your text book.
The protoplanet hypothesis: Origins of the world's oceans: Origin of our atmosphere: Structure of the solid earth: Fossil and dinosaur information
Related Links
Origin of the oceans
Earth's early atmosphere
Earth's interior
Earth's interior-2
Zoomdinosaurs.com
Dante's Peak - Facts and Fiction
So. Calif. Geology
Moon Geology
Moon Geology - 2
Be sure to send me suggestions for the next In Depth segment. patricia_pitts@redlands.k12.ca.us