Landform Detectives | Filament Games - 2 views
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Fred Delventhal on 20 Jul 10A violent volcanic explosion immediately and forever alters the landscape. Elsewhere, raindrops gradually pick patterns out of the rock over the course of thousands of years. Can you recreate some of Earth's most amazing geological features by uncovering the natural processes that shaped them? via http://ilearntechnology.com/?p=2672