Pool tables, shower tiles, and pizza stones all have something in common--they are all made with metamorphic rocks! But what do you know about this rock? Dig deep below Earth's surface to find these ever-changing rocks. Follow along with the different ways these rocks form under high heat and lots of pressure. Find out what metamorphic rocks look like up close, and see how people have used them over the years. It's key Earth science curriculum made approachable for all!