Almost as old as our planet, rocks are formed and shaped by heat, wind, water, and immense amounts of pressure. You can see the evidence of their long and violent history in their color, shape, and texture. In addition to rocks, Earth is full of minerals. In fact, rocks themselves are made out of minerals. These are naturally occurring solids found in the earth. This fascinating guide to rocks and minerals combines fact-packed, easy-to-read text with colorful and quirky illustrations. From tectonic plates to soil, it is an eye-opening introduction to how the matter under our feet shapes the world around us.