Rocks and Soil

Watch this video to remind you about rocks and soil What is the name of the outside layer of the Earth? crumb crust mantle Fill in the missing words. Soil contains humus which is made up of pieces of rock and dead and decaying remains of living things. Match the process of soil formation to its description. Additions Dead animals and plants and rain are added to the soil. Movement Rain falls and soaks into the soil. Humans and animals dig in the soil, mixing it up. Changes Dead leaves and animals turn into humus. Rocks break down into smaller pieces. The soil changes colour when air reaches it. Losses Storms wash the soil away. Plants die. Water evaporates and leaves the soil. Label the different layers of soil:weathered rock, subsoil, topsoil, bed rock bedrock weathered rock subsoil topsoil Match the type of rock to the way it was formed Igneous rock Comes from magma in volcanos. When magma cools down and becomes hard, it forms this rock. Sedimentary rock This is formed when layers and layers and layers of mud and rock pile up over thousands of years. This happens underwater. Metamorphic rock This rock is made when other types of rock are heated and squeezed, which changes them. Sort the rocks into the different rock types Igneous Obsidian Granite Sedimentary Limestone Sandstone Metamorphic Marble Quartzite True or false: fossils are bones True False