Children interpret such rock cycle clues as crystal size and texture; simulate weathering and erosion; study the rock cycle on a global scale; and create rocks. Includes the videotape The Rock Cycle, comprehensive Lesson Guide, and enough materials for 12 lab stations. Shipped directly from the manufacturer. Not available with rush shipping. Delivery time estimated at 10-14 days or less. Gift wrap not available. Information on how to place your order by fax or by telephone. Grades 7-12. Product Number: AM8445