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Learn about the evidence and individuals involved in the development of the Theory of Plate Tectonics. Explore seafloor spreading, sonar, and boundary activities. Homework: None.
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Monday, November 27th NO RTW: Grab papers at the front Objective: I will be able to identify the evidence used to support the Theory of Plate Tectonics and explain the role that different individuals have played in the development of the Theory of Plate Tectonics. Agenda: • Organize ISN • Article and Summary in notebook Homework: • None
ISN Pages • New GOW pg. 70 • New TOC pg. 71
Seafloor Spreading Support • Go to these sites and read the article then in your notebook on pg. 72 • Summarize the main idea and why the Glomar Challenger and Alvin are important to the Plate Tectonics Theory. Give A LOT of support! • http://www.divediscover.whoi.edu/history-ocean/drilling.html • http://oceanexplorer.noaa.gov/technology/subs/alvin/alvin.html
Tuesday, November 28th NO RTW: Objective: I will be able to identify the evidence used to support the Theory of Plate Tectonics and explain the role that different individuals have played in the development of the Theory of Plate Tectonics. Agenda: • Plate Tectonic Article, take notes, take quiz Homework: • None
Today’s Assignment • Visit this site: http://www.visionlearning.com/en/library/Earth-Science/6/The-Origins-of-Plate-Tectonic-Theory/65 • Read through ALL the sections, jot down notes (pg. 72/74), and answer questions to test your comprehension while you are reading. • When done with reading all the sections scroll back to the top and click “Quiz” and complete all the questions to the best of your ability.
Pg. 74 RTW: How has SONAR helped our understanding of the Plate Tectonic theory? Wednesday, November 29th Objective: I will be able to describe how the invention of sonar contributed to an advanced knowledge of the ocean bottom. Agenda: • Check work from Monday (pg. 72- Summary) • Plate Tectonic Notes pg. 73/75 Homework: • None
Plate Tectonic World Map • Plate Tectonics- An Introduction
Lithosphere-solid part of Earth (upper mantle and crust) • Hydrosphere-liquid part of Earth • Coastlines, water depth & sediment type are affected by the constant movement of continents and rocks
World Ocean 4 Basins • Pacific • Atlantic • Indian • Arctic
Layers of Earth • The Core- innermost iron rich layer-a solid inner & a liquid outer • Movement of liquid produces the Earth’s magnetic field • The Mantle- outermost solid layer • Extremely hot • Boiling point for rock • Flows like liquid but very slow
Layers of Earth • Crust= thin skin like layer, uppermost layer of the earth • Oceanic Crust • 3 miles thick • Sea floor • Basalt- a dark colored mineral • Denser • Continental Crust • 10-30 miles thick • Granite- a light colored mineral • **Think of continental & oceanic crust floating on mantle like icebergs
Continental Crust- land • Continental Shelf- gradual decline • Continental Slope- sharp decline • Continental Rise- levels out to meet sea floor • Abyssal Plain/Deep Ocean
Narrow Shelf Wide Shelf
Alfred Wegener • 1912- Continental drift was proposed • 1950’s-1960’s- evidence was found & called Plate Tectonics • Geologic change is CONSTANT • Fossil, coal deposits, etc is evidence of joined continents. • This large land mass is known as Pangaea
Key Scientists in Plate Tectonics • Alfred Wegener- Proposed the continental drift theory • Eduard Suess- Proposed Gondowanaland • Harry Hess & Robert S. Dietz- Proposed seafloor spreading
Thursday, November 30th RTW: On the paper on the front desk write one question you have about plate tectonics Objective: I will be able to explain what happens at divergent, convergent, and transform boundaries. Agenda: • Plate Tectonic Activity pg. 58 Homework: • None
ShORE Symposium • Tomorrow meet at the Bus Loop by 8:50am! We will be leaving at 9:00am! • Bring a packed lunch and reusable water bottle or coffee mug to fill • We will be returning at 1:30pm
You should have the following: • Plate Tectonic Packet • Piece of aluminum foil • Fruit Rollup (unwrap and rip into 2 pieces) • Graham cracker (break into at least 4 pieces) • Frosting (spread into a 4 inch circle/square)
Think, Pair, Share! • What happened to the frosting between the fruit roll ups? • Name a specific location on the Earth where this kind of boundary activity takes place. • What is the process called that creates new ocean floor from diverging plates?
Think, Pair, Share! • What happens when a tectonic plate gets subducted? • What feature is formed in the ocean along the subduction zone? • Name a specific location on the Earth where this kind of boundary activity takes place.
Think, Pair, Share! • How did the wet crackers act more like the real crustal plates than dry crackers would? • What feature do the resulting ends of the wet crackers represent? • Name a specific location on the Earth where this type of boundary activity takes place
Think, Pair, Share! • Nothing happens at the beginning, but as you increased the pressure, the crackers finally break. What do we call the breaking and vibrating of the Earth’s crust? • Name a specific location on the Earth where this type of boundary activity takes place.
Clean-up • Place all trash in the garbage (NOT recycling!) • Answer questions on the 2nd page • Level 1 (easiest) Level 4 (hardest) • You can write your answers on the back of the first sheet • If/when you finish turn it in to the basket, otherwise finish for homework.
Friday, December 1st No RTW Objective: I will be able to explain what happens at divergent, convergent, and transform boundaries. Agenda: • Finish Notes and Packet • Honors: Summarize research being done in FL (mote.org) Homework: • None