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Searched for: GEM Subject is Science -- Earth science
Results 1 - 5 of 2048
This text relates a scientific detective story through clues from both sides of the Pacific. In the year 1700, a mysterious tsunami flooded fields and washed away houses in Japan. It arrived without the warning that a...
This resource explores the essential concepts involved in teaching students about recurrence intervals. It examines issues with 'random' events, probability, and recurrence intervals versus forecasting, and provides...
This collection of cartograms, or density-equalizing maps, shows the world's territories re-sized on each map according to the variable being mapped. Over 100 variables have been mapped, including population, land area,...
This is an update to the original Fujita Scale for wind speeds and tornado damage. The Enhanced F-scale uses three-second gusts estimated at the point of damage based on a judgment of 8 levels of damage to the 28...
This video segment, adapted from a NOVA broadcast, shows how sea ice forms in the Southern Ocean around Antarctica and how its seasonal fluctuation dramatically changes the continent. The segment, two minutes...
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