PPT-ROCKS ROCK! Sandra Bright

Course 75T01 brightshartwickedu Rocks Theyre everywhere On the ground in the ground Different sizes different shapes different colors different textures What exactly is a rock and why do rocks vary so much. Hot rocks/Fire Rocks. Igneous Rock . Igneous rocks form . when molten rock cools and solidifies. . Molten rock is called magma when it is below the Earth’s surface and lava when it is above.. when molten rock cools and solidifies. Sedimentary rocks cover ~ 75% of Earth’s surface. ~ 5 % (by volume) of Earth’s outer 10 miles. Contain evidence of past environments:. Important resource. Coal, oil, and other fossil fuels. Groundwater resources. (pages 102–106). 1. Describe how sedimentary rocks form.. 2. List and describe the three major types of sedimentary rocks.. Objectives. write these down!. Sediment. Erosion. Deposition. C. ompaction. Metamorphism. Metamorphic rocks: appear to have changed in their structure or chemical composition since their creation or formation.. Originally sedimentary or igneous. Altered by heat, pressure, or exposure to hot fluids in earth’s crust. Igneous. rocks form from the solidification or crystallization of minerals in molten material.. If the rock form below the Earth’s surface it is considered . magma. Molten rock that hardens on the Earth’s surface is called . UNIT . - . 6. What is Metamorphism. Metamorphism. (from the Greek words for “changing form”) is the process by which rising temperature and changes in other environmental conditions transform rocks and minerals. Introduction. Igneous Rocks – rocks that appear to have been molten in the past. Molten rock names (based on location). Magma: molten rock found anywhere beneath the earth’s surface. Lava: molten rock that flows out onto the earth’s surface. By Nate, Aidan, . Thalia. , and Elliott . Pictures. Information. We identified our rock as an igneous rock, specifically obsidian.. The chemical formula of obsidian is mostly silicon dioxide (SiO2) with a bit of magnesium oxide (. LOWER-GRADE REGIONAL METAMORPHICS. Slate, Phyllite, . “Greenstone” and Schist. 2. Metamorphic Rock Definition. A sedimentary, igneous, or previously existing metamorphic rock which has undergone textural, structural, and/or mineralogical changes due to the action of one or more agents of metamorphism. Bright light story. The farmer was crossing the field at dusk when a bright light was sighted in the sky. Upon reaching the farmhouse, Olson made a telephone call to the sheriff. The farmer grabbed a camera and dashed outdoors to get pictures. The next day the big news report in the local paper was an alleged UFO sighting.. Sedimentary Rocks. Metamorphic Rocks. 1. NPS. Why are minerals & rocks important?. Geologic processes depend upon geologic materials . . volcanic . eruptions. earthquakes. landslides. erosion . Setting up . your. . foldable. First fold your paper in half (hamburger, not hot dog).. Hold your paper so that it opens like a book.. Now, using a ruler, draw 3 horizontal lines at the following distances from the top:. Rocks are classified by how they are formed, their composition, and texture. Rocks change over time through the rock cycle. TYPES OF ROCKS. ROCKS ARE DIVIDED INTO THREE GROUPS BASED ON HOW THE ROCKS . a. metamorphic rock. . b. sedimentary rock. . c. igneous rock. d. sediment. . #1. Which of the following processes is NOT part of the rock cycle?. a. solidification. . b. chiseling. c. erosion. d. metamorphism.