This lesson plan is part of the DiscoverySchool.com lesson plan library for grades 6-8. It focuses on the naturally-occurring greenhouse effect on Earth, and its connection to global warming. Students build model greenhouses to see how this process works. Included are objectives, materials, procedures, discussion questions, evaluation ideas, suggested readings, and vocabulary. There are videos available to order which complement this lesson, an audio-enhanced vocabulary list, and links to teaching tools for making custom quizzes, worksheets, puzzles and lesson plans.