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All rocks have the POTENTIAL to go through the rock cycle!! PICK ME!!!!!

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Presentation on theme: "All rocks have the POTENTIAL to go through the rock cycle!! PICK ME!!!!!"— Presentation transcript:

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2 All rocks have the POTENTIAL to go through the rock cycle!! PICK ME!!!!!

3 The Rock Cycle Rocksandminerals4you.com

4 Once very hot magma Heat and pressure make the change Igneous rocks Igneous Rocks Form inside the Earth or outside The earth crust

5 Metamorphic Rocks Rocks that have changed due to intense heat and pressure Created from sedimentary, igneous or other metamorphic rocks. They are formed deep inside the earth. Heat, and pressure from the rock above flatten and bend the rock Formed deep within the earth!

6 Sedimentary Rock Little pieces of rock, dirt, broken down and worn away by erosion Wash away down rivers, into lakes and oceans Layer on layer of these bits of earth are deposited on top of each other over time Pressure of more and more “sediments” –bottom layers turn into rock Starts on the crust and compacts and cements inside the earth

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8 How might these rocks have gotten here? Look more closely at the Rock Cycle!!

9 There are properties you can Test to determine the mineral

10 Hardness Hardness Mineralogical Society Minerals for Kids These are common “tools” for testing hardness

11 Luster How the mineral reflects light! LUSTER What words can describe the luster? Dull Waxy Glassy Very shiny Silvery Shiny Opaque Reflective

12 Cleavage Cubic cleavage New York State High School Regents Exam Prep Cleavage: when a rock or mineral breaks along flat, smooth Surfaces. Fracture: When a rock or mineral breaks into irregular rough surfaces

13 Streak Test This is a test where you scratch the mineral against a porcelain This test tells you the color of the mineral

14 Rock properties make them useful for different purposes. Rocks that can be cut into regular shapes are useful for buildings and statues Rocks that crumble easily are useful for making mixtures such as concrete and sheetrock.

15 The Mohs scale for minerals is shown below. An unknown mineral can be scratched by topaz, but not by feldspar. According to the Mohs scale, which of the following best describes the hardness of the unknown mineral? A.less than 5 B.more than 8 C.less than 8, but more than 6 D.more than 4, but less than 6

16 Elena found a piece of a mineral while on a hike. She wants to identify the mineral she found. 1.Identify two physical properties of minerals. 2.Describe how Elena can test the mineral she found for each of the physical properties that you identified in part (a).

17 There are properties you can Test to determine the mineral

18 cience/tests/rocks_soils.shtml


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