This document discusses the process of fossilization and the different types of fossils that can form. Petrified remains form when minerals replace the tissues of an organism over time. Other fossilization processes include molds and casts that preserve the shape of an organism, trace fossils like footprints or burrows, and organisms preserved in amber, asphalt or by freezing.

1. Warm Up – Page 50 1. Petrified remains form when __________________ replaces all or part of an organism.