Posted Thursday, January 22, 2009
Featured on Episode 16 of the 2008-2009 season
Temperatures as low as seven degrees helped to create an ice bridge on the lower Niagara River in Ontario, Canada. Ice bridges form when Lake Erie freezes and strong winds push ice into the gorge beneath the American Falls and Canada's Horseshoe Falls. They can happen several times during a winter, depending on the weather. Years ago, ice bridges used to be even more spectacular, but ice booms, which hold back the ice, were installed at the head of the river. In the past, tourists looking for adventure have tried to cross Niagara Falls' ice bridges on foot. But an accident in 1912 put a stop to that.
Wikipedia Niagara Falls
Niagara Falls History
Facts About Niagara Falls
More About the Ice Bridge
Students will learn more about ice bridges and write some creative pieces about the impressive winter scene.
Grades: 3rd Grade, 4th Grade, 5th Grade, 6th Grade, 7th Grade, 8th Grade
Subjects: Science
Standards Addressed: Students will produce informal writings for various purposes.
Students will identify how freezing and thawing reshape the land surface.
Students will describe evidence of changes on Earth’s surface in terms of slow processes.
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