• Physical Science Experiments (1994)
• A Desk in the Jungle (19??)
• The Last Flower (19??)
• Scientific Careers (1991)
• The Perfect Baby (19??)
• Corn and Culture: Fields of Change (1992)
• Clouds: Messengers of the Weather (19??)
• Mountain Building Processes (19??)
• Oceans, Coasts, and Tides (19??)
• The Story of Volcanism (19??)
• Stream Systems and Fluvial Processes (19??)
• Understanding Desert Landforms (19??)
• Understanding Drought and Desertification (19??)
• Understanding Ecosystems (19??)
• Understanding Geysers and Hot Springs (19??)
• Waves, Shores, and Beaches (19??)
• Weathering, Mass Wasting, and Erosion (19??)
• Where Land Meets Sea (19??)
• Out of the Ozone (19??)
• Life in the Greenhouse (19??)
• Acid Rain and Our Forests (19??)
• Wetlands (19??)
• Saving Endangered Species (19??)
• Extinction: End of the Line (19??)
• Saving Forest Ecosystems (19??)

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