A waterfall is a place where water flows over a cliff or down a steep hill.
Waterfalls are usually formed when a river or stream flows over a cliff or down a steep hill. The water flowing over the cliff or hill is heavier than the water in the river or stream below, so it erodes the rock and creates a waterfall.
Waterfalls can range in size from small, barely perceptible trickles of water to large, powerful flows of water. Some waterfalls are only a few feet tall, while others are hundreds or even thousands of feet tall.
The height of a waterfall can determine its power. The taller the waterfall, the more powerful it is. The most powerful waterfalls can create a mist of spray at the bottom that can be seen for miles.
Small waterfalls are called cascades, while larger waterfalls are called waterfalls.