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9/19-20 LANDFORMS & EARTH PROCESSES
NOTES: Earth Physical Processes Weathering, Erosion, Soil Deposits & Dirt VID CLIP: The Value of Soil Tectonic Activity ACTIVITY: Landform Poster REVIEW: TEST NEXT CLASS! GAME: Landform Jingo
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LANDFORMS & EARTH’S PHYSICAL PROCESSES
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WEATHERING, EROSION, SOIL DEPOSITS & DIRT
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REVIEW 23) WEATHERING
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2) Types of Weathering A= MECHANICAL = wearing away by wind, water and ice B= CHEMICAL = disintegration by chemical reactions, such as acid rain
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REVIEW 24) EROSION
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*4) Landforms/Effects of EROSION
CAVES CANYONS COASTLINES V-SHAPED VALLEY
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*5) Landforms/Effects of SOIL DEPOSITS
DELTAS ALLUVIAL FAN SAND DUNES SAND BARS
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COMPREHENSION QUESTIONS
6) Give an example of WEATHERING, EROSION & DEPOSITION you’ve seen in our area. 7) Sketch a picture of what’s happening there.
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VID CLIP: The Value of Soil (5 min)
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*8) FERTILE SOIL WEATHERED ROCK/SAND
ORGANIC MATTER (DECAYING PLANTS & ANIMALS) MANURE BACTERIA & FUNGI WATER AIR Although the MINERAL content of the rock is important, TOP SOIL that is good for farming mostly consists of DECAYING plant matter.
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TECTONIC SHIFTS
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Earth’s CRUST & SOLID UPPER MANTLE
LITHOSPHERE Earth’s CRUST & SOLID UPPER MANTLE
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The HEATING and COOLING of Earth’s liquid MANTLE is called CONVECTION, and is the main force that causes TECTONIC PLATES to shift and move.
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COMPREHENSION QUESTION
How does convection help cause the movement of tectonic plates?
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Do NOT eat your cookie until asked by your teacher to do so
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Sliding Plate Over Asthenosphere
Carefully without breaking the cookie remove the top cookie. Then slide this top portion of the cookie over the filling. Once completed place your cookie on your portion of your napkin marked sliding over asthenosphere. This represents the movement of a plate sliding over the asthenosphere. Do NOT eat your cookie until asked by your teacher to do so
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PLATE TECTONICS TECTONIC PLATES are roughly 30 enormous pieces of the Earth’s CRUST that FLOAT on the MANTLE
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CONTINENTAL DRIFT
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Convergent Plate Boundary
Carefully break the top cookie of your Oreo in half. (Do not break the bottom cookie) Then bring the broken parts together in the center of the Oreo. Once completed place your cookie on your portion of your napkin marked divergent boundary. This represents a convergent boundary. Do NOT eat your cookie until asked by your teacher to do so
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9A) CONVERGENT (ocean/ocean)
Subduction Zones are where ONE PLATE DIVES UNDER ANOTHER under the ocean VOCANIC ISLANDS are formed The HAWAIIAN ISLANDS are an example
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9B) CONVERGENT (ocean/continent)
Subduction Zones are where ONE PLATE DIVES UNDER ANOTHER near an ocean VOCANIC MOUNTAIN RANGES form in subduction zones. The CASCADE MOUNTAINS (in Oregon & Washington) is an example
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9C) CONVERGENT (continent/continent)
Convergent Continent Collision RISE when one PLATE COLLIDES with another (with no subduction) They form “FOLDED” MOUNTAIN RANGES The HIMALAYA MOUNTAINS are an example
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Divergent Plate Boundaries
Carefully break the top cookie of your Oreo in half. (Do not break the bottom cookie) Then pull the two parts of the top cookie apart. Once completed place your cookie on your portion of your napkin marked divergent boundary. This represents a divergent boundary. Do NOT eat your cookie until asked by your teacher to do so
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9D) DIVERGENT When tectonic plates SPREAD APART, it’s called Divergence. This causes RIFT VALLEYS & OCEAN RIDGES to form. The GREAT RIFT VALLEY & MARIANAS TRENCH are examples
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Transform Plate Boundary
Carefully break the top cookie of your Oreo in half. (Do not break the bottom cookie) Then pull the two parts of the top cookie pass one another, in opposite directions. Once completed place your cookie on your portion of your napkin marked transform boundary. Do NOT eat your cookie until asked by your teacher to do so
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9E) TRANSFORM BOUNDARY are where TECTONIC PLATES GRIND past each other - they are the most common places for earthquakes. They create FAULT LINES . The SAN ANDREAS FAULT in California is an example
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NOW eat your cookie, but clean up all the crumbs
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PAIRS: Landform Posters
Names of Group Members Name of Landform Sketch of Landform Detailed Description in your own words Explain HOW it’s formed in your own words Example of where to find that Landform (where to visit one in person) Be Prepared to give a Mini-Presentation for a QUIZ GRADE
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REVIEW TIME Go Through Your Notes Complete Your Review Quiz Yourself
Organize Your Folder/Binder for the Check Worth a TEST Grade Make-Up Any Missing Assignments
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VID CLIP: CONSEQUENCES of SUPER VOLCANOES
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VID CLIP: HOW TSUNAMI WORK
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TSUNAMI are a SERIES of enormous WAVES, caused when there’s an EARTHQUAKE under the OCEAN that DISPLACES large amounts of water. Tsunami cause massive destruction – recent examples include the 2004 Indonesian & 2011 Japanese Tsunami
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VID CLIP: Dirt https://www.youtube.com/watch?v=if29mjcd5bc
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VID CLIP: Why Is Soil So Important?
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VID CLIP: Lets Talk About Soil (5.5 min)
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MINING & DRILLING People DRILL into the LITHOSPHERE for WATER & PETROLEUM (oil & gas) People MINE into the Lithosphere for COAL & MINERALS
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COMPREHENSION QUESTION
If you took a hardboiled egg and dropped it, you would see its shell split into several pieces. How would those pieces of eggshell be same as tectonic plate? How would they be different?
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