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Published byNoah Gyles Tucker Modified over 9 years ago
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8/30/13Lesson Objectives: pg. 4 in journal What I expect you to learn To know and define the 3 main types of rocks To understand the different agents (causes) of weathering To know how sedimentary rock is formed To be able to define and perform (do to playdough/clay) –Weathering, erosion, deposition, cementation
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The Rock Cycle
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Hold on a minute Lets start over… from the begining
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Make me: Tree map rock types pg. 5 3 Main rock types SedimentaryMetamorphicIgneous
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Draw me on page 6
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Wait… what did you say? Write these under the tree map Sedimentary: formed by cementing of sediment layers Metamorphic: transformed due to heat and pressure into another rock Igneous: Formed by cooling magma/lava
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Now lets go one step at a time
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Weathering, Not that kind of rock Definition: The breaking down of rocks into smaller pieces…. What can break rocks?
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Erosion: The moving of sediment Wind, water, ice, animals can all erode!
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Deposition: When the sediment that was being transported stops. Deposit.. Get it … like at a bank
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Follow the arrows…
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Hold on a second.. Not as bad as it looks
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So.. Back to Weathering How can rocks be broken 3 main categories Physical: running water, freezing water, moving ice, rockslides Chemical: acid rain Biological (living things): plants and animals
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The effects of weathering
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Methods of transportation (erosion) Gravity Wind Water Ice
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Formation of sedimentary rock Later this week we will make our own rocks So what will we use –Sediment –Cementing agent (ingredient), in nature these are minerals.. This can take a while (many many years) we have a week so we may cheat a bit.. Only a little –Water (helps compact and mix in the cementer)
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Have a great weekend Thank you all very much, I have greatly enjoyed my first week as your teacher and look forward to the fun ways to learn ahead Homework over the weekend!?!?!?!?!?! –Bring 2 rocks to class next week…. See not so bad now is it.
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