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Are you ready to take the plunge and find out?
Waterfalls are formed when a river's sediment, the little rocks and minerals, slowly wash away until only the harder rock remains. When this hard rock or granite makes a cliff or ledge, water flows over into a pool below, and it looks very dramatic!
As long as a river flows into it, a waterfall will continue to... well, fall! Some scientists predict that another 20,000 years of erosion could mean that our beloved Niagara Falls will be swallowed up by Lake Erie. But don't worry! Freshwater from the Great Lakes continue to flow into the Niagara River, which will feed the Falls for years to come.
In Colorado, the waterfalls freeze and mountaineers can even climb them. In hotter climates like Venezuela, the Angel Falls can even turn to mist before reaching the bottom. It's also the tallest waterfall in the world! Another cool natural phenomenon - you'll often see rainbows over waterfalls because of the amount of water or mist in the air.
There are many different types of waterfalls. Niagara Falls is called a block waterfall. How would you describe it?