All around us Earth's rock cycle is in action. Wind and rain turn rocks to sand; dead leaves mix with rock particles to make soil; over millions of years, layers of sand and soil turn to sedimentary rock; beneath our feet in Earth's crust, extreme heat and pressure create metamorphic rocks; while lava bursts from volcanoes and cools to become igneous rock. This in—depth look at rocks and fossils gives students the chance to carry out investigations such as examining rock properties, building a rock cycle model, and even creating their own fossils.