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This textbook chapter tells the story of DDT and the the near-extinction of the Perigrine Falcon. The role of the Rachel Carson's best-seller, Silent Spring, and the role of research in the recent recovery of bird populations in the United States... (View More)

In this introductory textbook chapter, students become familiar with how scientists view planet Earth. This is the first chapter in the unit, A New World View, which introduces global systems science, emphasizing the concepts of environmental... (View More)

Keywords: Sustainability
Audience: High school
Materials Cost: Free

This textbook chapter summarizes the changes in the ecosystems found in the world's forests. This is chapter 2 in the unit, A New World View, which introduces global systems science, emphasizing the concepts of environmental diversity, Earth as a... (View More)

Users explore data, using My World GIS, that characterize the dynamic Greenland Ice Sheet. By examining photographs, map views, and tabular data, users gain an understanding of how and why scientists are monitoring the ice sheet and what they are... (View More)

In this lesson, learners will discover how certain snakes (pit-vipers) can find prey using a natural infrared sensor and will extend their understandings by exploring infrared technology applications. The lesson features background information for... (View More)

In this multi-day activity, students use infrared and visible images of animals and sort them into broad categories based upon the learner's own reasoning and observations of the images. Further explorations reveal that warm and cold-blooded animals... (View More)

This collection of activities presents learners with intriguing questions about the universe and provides an opportunity to explore topics related to the search for life beyond our own planet. The collection includes eight existing classroom... (View More)

In this activity, students identify habitats in Arizona, define and illustrate a food web in a kinesthetic exercise, and explain the importance of biodiversity in a writing assignment. Required materials include a ball of yarn or string. The... (View More)

In this activity, students are introduced to the importance of maintaining biodiversity and to citizen science. The resource includes three student worksheets, a data sheet, answer keys, and Web links. This is Lesson 2 in Biodiversity, part of... (View More)

Audience: Elementary school, Middle school
Materials Cost: Free per student

This is an activity about the discovery of water ice on Mars. Learners will create physical models using Earth samples to answer the question, "is it more likely that high altitude regions of Mars are composed of icy dirt (with ice filling the pore... (View More)

Keywords: Mars
Audience: Middle school, High school
Materials Cost: Free