Provides various lessons plans (including background, content standards, activities and assessment) developed by high-school teachers. Printable pdf versions of the lessons are available. Each lesson uses top-notch supporting video clips included on the site. • Economic Use of Natural Areas Grades 9-12 • Fires and Fire Suppression Grades 6-8 • Floods Rising: - Waters and You. Grades 9-12 • Flowers and Plants: Flowers and Plants. Grades 7-10 • Forests: Primary and Secondary Succession in America's Forests. Grades 9-12. • Fossils: Relative Dating Grades 7-9 • Insects: Co-evolution of Plants and Pollinators. Grades 9-12. • Landfills: A Solid Waste Management Plan. Grades 6-8 • Mammals and their Ways. Grades 9-12 • National Parks and Wilderness: Public Policy - Ecotourism in National Parks and Wilderness - Grades 6-9 • Native Species: Restoration and its Impact on Local Populations. Grades 9-12 • Non-Native Species: English Ivy - Pretty Houseplant or Deadly Killer? Grades 9-12 • Ocean Habitats The Intertidal Zone. Grades 7-9 • Prairie Habitats: The Formation and Value of Temperate Grasslands. Grades 6-9 • The Rock Cycle: The Story of a Rock. Grades 7-9 • Threatened Species and Public Policy. Grades 6-8. • Transportation: Simple Thermodynamics of Transportation. Grades 9-12 • Salmon vs. Dams Grades 6-9 • Volcanoes Grades 9-12