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D U L I N All Rocks are made up of what? Minerals A mineral is a substance found in _____________ that is not a plant or an animal. Nature Some rock forms when it cools and hardens below the Earth’s what? Surface A rock was formed on earth’s surface and is smooth. What type of rock is it? Igneous Name two things that help make up sedimentary rocks Soil, mud, and rock at the bottom of oceans, lakes, streams, and rivers. What rock is made up of shells, skeletons, of sea animals, and hardened parts of sea plants? (Obsidian, Granite, or Limestone) Limestone A physical feature of the Earth’s land like a plain, mountain, or plateau is known as what? A landform Which landform is generally low, flat land? A plain An area of land lying between hills or mountains is a(n) _______________. Valley True or False A flat area of land that rises above the land it surrounds is a plain. False What is the process that causes rocks on earth’s surface to crumble, crack, and break? Weathering Rocks are broken apart by frozen water and (sedimentary or plant roots) that get into spaces in the rock. Plant Roots Rocks that are formed of bits and pieces of matter that have settled to the bottom of water are what type of rocks? Sedimentary What type of rock forms from cooled magma? Igneous What types of rocks have been changed by underground pressure or heat? Metamorphic Name two types of rocks we discussed. Answers may vary. Teacher’s disgression. What are some of the characteristics of topsoil? Plants and animals, dead plants and animals, humus What are the characteristics of Solid Rock? It is made of rock only. What can help prevent erosion; plants, dogs, or wind? plants What is a flat area of land that rises above its surroundings. A Plateau. What can cause the weathering of a rock? Wind, Ice, chemicals, temperature change, water, and plant roots. Why is soil different in Ohio and Florida? Amount of sand in the soil. Types of dead plants and animals. Amount of water in the soil. What is the process that causes rocks to crumble, crack, and break? Weathering Which retains more water topsoil or sandy soil? topsoil Which career would be most concerned with erosion? Farmer, Fire fighter, Teacher Farmer FINAL DULIN In which rock, do most caves form?
