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This textbook chapter outlines the historical development of the Theory of Natural Selection, presenting classic evidence including Darwin's study of finch beak variation in the Galapagos Islands and Kettlewell’s investigation of the pepper moth... (View More)

Keywords: Adaptation; Evolution
Audience: High school
Materials Cost: Free

This website presents ongoing research and recent discoveries in astrophysics, Earth science, and biodiversity. Each bulletin has three types of stories: documentaries (short videos from the field), data visualizations (based on NASA and NOAA data),... (View More)

Audience: Informal education
Materials Cost: Free

Learn how to implement an ozone monitoring garden. This field guide includes background information on ozone-induced plant injury, resources for identifying ozone injury to some specific plants, activities and links for getting involved, and... (View More)

This introductory textbook chapter presents data demonstrating decreased global biodiversity and its link to human activity. The resource includes a field-based student investigation of local biodiversity, links to current news articles, and an... (View More)

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)

This chapter describes how to set a scale and measure distances and areas on satellite images. Using ImageJ, a freely available image analysis program that runs on most operating systems, users set the spatial calibration of an image, then select... (View More)

In this activity, users download and graph modeled climate data to explore variability in climate change. Most people know that climate changes are predicted over the next hundred years, but they may not be aware that these changes are likely to... (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 activity, users examine satellite images from NASA's Total Ozone Mapping Spectrometer (TOMS) that show how much ozone is in the atmosphere over the Southern Hemisphere. They interpret the images to identify ozone thinning that develops over... (View More)

Keywords: Ozone Depletion
Audience: Middle school, High school
Materials Cost: Free

This online, interactive "Chutes and Ladders" type of game is for ages 7-9 and can be played with a friend or against the computer. As players land on squares, depending on the described action, they either "leap" frog ahead if they help the... (View More)

Audience: Informal education
Materials Cost: Free