rocks, minerals and soils 3rd grade
Soil layers Watch and listen carefully to the video. The land on Earth is made out of _. Rock and soil Air and sand Clay and water Soil is made from rocks and _ plants and animals. Alive Dead Smelly are animals that help mix up the soil. Rabbits Snakes Earthworms Soil has layers. 2 3 4 Layers of soil Label the layers of soil. Humus Topsoil Subsoil Bedrock Type of rocks and formation Watch and listen carefully to the video. When magma cools and hardens, _ rock is formed. Igneous Sedimentary Metamorphic When sediments harden, _ rock is formed. Igneous Metamorphic Sedimentary When existing rocks are changed due to heat, pressure, and chemicals, _ rock is formed. Sedimentary Igneous Metamorphic The wearing away and removal of rock and soil caused by wind or flowing water is _? Erosion Melting Weathering The breaking up of rocks into sediment by such forces as wind, rain, and sunlight is called _? Erosion Melting Weathering Rocks change forms repeatedly in a process known as the _. Metamorphosis Weathering cycle Rock cycle Rock cycle Fill in the blanks to complete the rock cycle using this words:MAGMA, METAMORPHIC ROCK, SEDIMENTARY ROCK, IGNEOUS ROCK IGNEOUS ROCK MAGMA METAMORPHIC ROCK SEDIMENTARY ROCK Place each statement in the correct box. Weathering A river carries pieces of sediment down stream. A beach that is losing sand because the waves are beating the shore and are carrying the sand out to sea. Erosion A tombstone that has the dates worn off. A statue that no longer has a nose, eyes, or mouth.