The Restless Earth: Rivers, Lakes, and Oceans

Water covers more than 70 percent of Earth’s surface, and all of it is connected in the never-ending water cycle. A substance that can cut through solid rock, destroy cities, sculpt mountains and coastlines, and affect climate, water is a mighty force in nature. The power of moving water, such as in rivers, changes Earth’s landscape, creating valleys and deep canyons over time.