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This textbook chapter presents several biodiversity case studies, including a study of prairie soil, the 1930's Dustbowl, and the importance of soil conservation practices. The resource includes a link to current news articles and a teacher's guide.... (View More)

In this simulation activity, students experiment with a population of M&M candies or paper dot "beetles" to test how well each color is adapted to survive on a field of colorful wrapping paper or fabric. Students act as predators and see that... (View More)

This textbook chapter presents a real case study involving the the logging of an old stand forest from three perspectives, that of the environmentalists, the wood products industry, and a politician. An associated writing activity engages students... (View More)

Epo's Chronicles is a weekly Web comic series which takes place in the distant future. It is about a sentient spaceship called Epo, and its humanoid companion, Alkina, who explore the universe and try to discover their origins. The comic follows a... (View More)

Audience: Elementary school, Informal education
Materials Cost: Free

In this activity, students use image analysis software to determine the percent loss of old growth forests over time by analyzing a time series of 4 forest maps of the U.S. Software is available on the Global System Science Website. A manual... (View More)

Readings in this chapter guide student reflection on sustainability of the planet, and whether the Earth system is near a tipping point, where ecosystems will reorganize and seek a new equilibrium, with consequences for biodiversity. The resource... (View More)

This Website brings current science to the general public, informal learning centers, and classrooms. The three Science Bulletins -- Astro, Earth, and Bio - present ongoing research and recent discoveries in astrophysics, Earth science, and... (View More)

Audience: Informal education
Materials Cost: Free

This textbook chapter introduces the buffalo as a keystone species, and describes the environmental impacts of its near extinction, including today’s predominance of non-native species in the Great Plains. Human activities that contribute to... (View More)

In this textbook chapter, sea level rise, ocean acidification, storm surge, desertification, ecosystem loss, and extreme weather are all discussed, along with economic and social costs to society. A video clip of NASA scientist, Dr. Tom Wagner,... (View More)

Audience: High school

In this textbook chapter, students are introduced to Mendelian inheritance and the biological processes through which changes in DNA are created and propagated within a population. An activity teaches students about dominant and recessive alleles,... (View More)

Audience: High school
Materials Cost: Free