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Timelapse is a global, zoomable video that lets you see how the Earth has changed over the past 32 years. It is made from 33 cloud-free annual mosaics, one for each year from 1984 to 2016, which are made interactively explorable by Carnegie Mellon University CREATE Lab's Time Machine Library, a...
Grade Level   K 1 2 3 4 5 6 7 8 9 10 11 12
Maps and Visualizations Teaching Media
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Published in 1998
"Here is the original Virtual Cave, devoted to the astounding variety of nature's handiwork found in solution caves, those dissolved out of solid rock by acidic waters. Most solution caves are found in carbonate rocks (limestone, dolomite, or marble) or gypsum. They may occur in sandstones, since...
Grade Level   3 4 5 6 7 8 9 10
Teaching Media Virtual Field Trips
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