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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)

Color is an important tool used in studying and interpreting satellite images. In this set of activities, students will make a color map of the global biosphere, distinguish between and learn the importance of true colors and false colors on... (View More)

Keywords: Biosphere; Mapping
Audience: Elementary school
Materials Cost: 1 cent - $1 per student

This article discusses how Global Positioning System (GPS) satellites work, and how the TOPEX and Jason-1 satellites use GPS data in making very precise topological maps of the oceans. The article includes an activity. Students are divided into two... (View More)

Keywords: GPS; Mapping
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