Color overheads included! The activities in this book provide a modern perspective on the earth's crust. Students will study rocks and minerals and learn about various geological processes. Each of the twelve teaching units in this book is introduced by a color transparency, which emphasizes the basic concept of the unit and presents questions for discussion. Reproducible student pages provide reinforcement and follow-up activities. The teaching guide offers descriptions of the basic concepts to be presented, background information, suggestions for enrichment activities, and a complete answer key. (32 pages with 12-page transparency set)