Water
Water Shapes Our Planet
Top: Over millions of years, the Grand Canyon was sculpted by the moving Colorado River.  Bottom: Long ago, massive moving glaciers scraped deep groves into rocks in Central Park.

Water runs easily through your fingers. It may not feel powerful. But lots of water, acting over time, shapes the world around us.

Falling and running water erodes rocks, creating giant canyons. Rivers and streams move dirt that forms new land. Glaciers scrape across the ground, carving valleys and dragging debris. Tides and storms claw away at coastlines. And water locked in Earth's crust actually has a role in moving the giant continents below our feet.
 

 
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