Clipvideo ETC
An online service of Florida's Educational Technology Clearinghouse
Items tagged gravity
Rock Fall
Yosemite National Park: Since the glaciers retreated around 15,000 years ago, rock fall has been the major force of change…
Yosemite Falls
Yosemite National Park: Yosemite Falls is the tallest waterfall in North America, and is a powerful presence in Yosemite Valley.…