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Plate Tectonics

Plate Tectonics. Activity. ????. What is plate tectonics?. Video. Tectonic Plates, Earthquakes, and Volcanoes http://www.teachersdomain.org/resource/ess05.sci.ess.earthsys.tectonic/. Video. Plate Tectonics: An Introduction Tectonic Plates, Earthquakes, and Volcanoes.

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Plate Tectonics

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  1. Plate Tectonics Activity

  2. ???? • What is plate tectonics?

  3. Video • Tectonic Plates, Earthquakes, and Volcanoes • http://www.teachersdomain.org/resource/ess05.sci.ess.earthsys.tectonic/

  4. Video • Plate Tectonics: An Introduction • Tectonic Plates, Earthquakes, and Volcanoes

  5. Location of Plates

  6. Location of Active Volcanoes

  7. Earthquakes

  8. ???? • What is the relationship between the location of plates and the location of earthquakes and volcanoes?

  9. Crust Plates • continental crust: plates contain continents • 20 to 40 miles thick • oceanic crust : plates under the ocean • 4 to 6 miles thick

  10. Plate Boundary • The border between two tectonic plates • All the tectonic plates are moving very SLOWLY around the planet • They move in many different directions • Some are moving toward each other, some are moving apart, and some are sliding past each other. • Because of these differences, tectonic plate boundaries are grouped into three main types.

  11. Matching • There are three types of plate boundary interactions • Convergent • Divergent • Transform • Read the terms and definitions • Cut out the pictures and match them with the matching term and definition

  12. Video • Plate Tectonics: The Scientist Behind the Theory • Why was Wegener's original idea about continental drift referred to as intuition and not science? • What did Wegener find that he believed was evidence to support his theory? • Why didn't others think that his findings constituted evidence?

  13. Videos • Plate Tectonics: Further Evidence • Plate Tectonics: Lake Mead, Nevada

  14. Sea-Floor Spreading • Cut the vertical lines so there will be three slits (figure 1) • Use red and blue markers to outline the alternating bands of arrows. Red represents (+) up and blue represents (-) down • Choose one color to represent normal polarity and a second to represent reversed polarity. • Cut the paper in half parallel to the long edge to get two strips of paper as shown in Figure 2. • Insert one end of each strip of paper through the spreading center line on your first piece of paper (see Figure 3). • Pull each strip of paper towards the slits nearest the margins of the paper (the subduction zones). • Tape each strip to make a loop as shown in Figure 3. • Circulate the ribbons of paper (which represent oceanic crust) to simulate the movement of ocean floor from the mid-ocean spreading center to the subduction zone. • Start the movement of the ribbons with bands representing normal polarity.

  15. Video • Tectonic Plates and Plate Boundaries

  16. Video • Plate Tectonics: The Hawaiian Archipelago

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