University of Oxford (UK)
Oxford University Museum of Natural History: The Learning Zone: Fossils
This excellent website walks students through the basics of understanding fossils. It emphasizes that most common fossils would be invertebrates and, after learning more about these life forms, students can choose to take a quiz. The...
Other
Bio Web Evolution: Homepage
This site from BioWeb Evolution was originally created as a ThinkQuest entry, and it has some good basic information about evolution. This page is on fossils and geologic time.