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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

In this activity, students will identify, compare and contrast multiple geo-referenced Earth data sets, and understand that Global Information Systems (GIS) are composed of geo-referenced data layers. Students compare ocean buoy data with satellite... (View More)

Audience: High school
Materials Cost: Free per student

Students examine a text discussing climate change and identify tools of argumentation: evidence, qualifiers, claims and support. A student worksheet supports the activity. This resource is supported by Chapter 7, What is the Controversy About?, in... (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)

This chapter describes the technique of preparing GIS-ready data and shows how to map that data and conduct basic analyses using a geographic information system (GIS). First, the user will download and format near real-time and historical earthquake... (View More)

This chapter walks users through a technique for documenting change in before-and-after sets of satellite images. The technique can be used for any set of time-series images that are spatially registered to show the exact same area at the same... (View More)

This activity prepares the student to launch an investigation of the relationship between precipitation and Streamflow for a local watershed. It can enrich a study of the water cycle. Following the step-by-step instruction in this case study,... (View More)

Audience: Middle school, High school
Materials Cost: Free

Students will be guided through the process of locating and graphing web-based environmental data that has been collected by GLOBE Program participants. This chapter highlights the opportunities for using GLOBE Program data to introduce basic... (View More)

Audience: Middle school, High school
Materials Cost: Free

This activity's storyline is built around the real-life case study of Dr. Walt Meier, a Sea Ice Scientist from Boulder, Colorado. In the fictional story, the students of Churchill become concerned about wildlife in their region because polar bears... (View More)

Audience: Middle school, High school
Materials Cost: Free

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