We see pretty pebbles at the beach, and we can find rocks in all shapes and sizes in backyards and parks. But what are rocks made of? Where do they come from? Why are they different colors, and why are some rocks hard and smooth, while others are rough and crumbly? Using rocks and other everyday easy-to-find items, students will get the chance to be real-life geologists and carry out step-by-step experiments to answer these and other intriguing questions...