"From sidewalk chalk to the Grand Canyon, sedimentary rocks are everywhere. But what do you know about this common rock? Dig into the layers of sediment built up over millions of years to make these rocks. Follow along with the different ways these rocks form and change, find out what they look like up close, and explore some of the most famous and fascinating sedimentary rocks. It's key Earth science curriculum made approachable for all!"-- Provided by publisher.