Geology Virtual Field Trips Study guides provided. See if you can find the answers to the questions as you visit interesting geology sites from around the globe. Join in a discussion group. GeoMysteries Join Rex the Dino Detective as he solves mysteries about rocks, fossils and minerals. The following characteristics are common to most meteorites.
Most meteorites contain some iron and tend to be very heavy.
Nicely illustrated online book. This free online magazine introduces children to the world of rocks, minerals, fossils and geology in general. Articles presented here will help children learn about the three basic rock types found on the earth, how to identify and classify rocks and minerals, and how to start a collection. Metamorphic Rocks NEW Metamorphic rocks form from heat and pressure changing the original or parent rock into a completely new rock. Nicely illustrated online book.