Landforms, Waterfalls

by lsorlows
Last updated 8 years ago

Discipline:
Science
Subject:
Earth Sciences

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Landforms, Waterfalls

Waterfalls

The river will flow over a harder rock and then over a weaker rock. The weaker rock, such as shale, will be eroded much quicker than more resistant rocks, which will then become the capstone at the top of the waterfall. (as seen in the image below)

Huangguoshu Waterfall, China

How Are Waterfalls formed?

Waterfalls are formed from the erosion processes caused by moving water. When a river is flowing, it is constantly eroding the rock underneath it, usually by abrasion, which is when sediments in the water collide with the rock and wear them down over time.

The large flow of water that is constantly going over waterfalls will endlessly erode the landscape around it. If human settlements are built to close, they will not only be subject common problems presented by rivers, such as flooding; but over the course of time, the river's size, speed and shape could be changed in such a way to force a settlement to rebuild further back from the river. And not only that, waterfalls can be dangerous to those upriver who are not careful. Accidentally going over the top of a waterfall is not very safe.

Niagara Falls, Canada – America

Sources:http://www.priweb.org/ed/earthtrips/Kashong/waterfalls.htmlhttp://www.smashinglists.com/beautiful-waterfalls-world/http://www.teara.govt.nz/en/waterfalls/page-2


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