Weathering and erosion from water created the Grand Canyon. This huge canyon was carved by the flow of the Colorado River over millions of years.
The Earth’s surface gets broken down through weathering.
For as long as the Earth has existed, weathering has helped shape the landscape. Weathering wears away rocks and soil.
Water is often the main cause of weathering, either as rain or ice. Rainwater can easily enter cracks in rocks or sidewalks. If this happens during cold months, the water may freeze and expand in the crack. Working as a wedge, the ice splits the rock. Many times, road crews have to patch up potholes caused by weathering from ice.
Wind can also cause weathering. Over long periods of time, wind can wear away rock and carry tiny pieces of the rock to new places. This is can create amazing landscapes, such as rocks that look like mushrooms.
Sometimes living things can cause weathering. Plant roots can wedge their way in between small cracks in rocks. As the plant grows, the roots increase the size of the crack little by little. Eventually, pieces of the rocks break off and get carried away by wind or water.