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Tectonic Jeopardy!

Tectonic Jeopardy!. Tectonic Jeopardy!. How do scientists know about Earth’s interior?. By measuring seismic waves from earthquakes. Back to Menu. Starting at the surface, what are the layers of the Earth, in order?. Crust Mantle Outer Core Inner Core. Back to Menu.

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Tectonic Jeopardy!

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  1. Tectonic Jeopardy!

  2. Tectonic Jeopardy!

  3. How do scientists know about Earth’s interior?

  4. By measuring seismic waves from earthquakes. Back to Menu

  5. Starting at the surface, what are the layers of the Earth, in order?

  6. Crust Mantle Outer Core Inner Core Back to Menu

  7. Oceancrust is made of _______. Continentalcrust is made of _______. Which is more dense?

  8. Basalt& Granite. Basalt / Ocean crust is more dense. Back to Menu

  9. Describe the Mantle. Talk about its thickness and state of matter.

  10. The Mantle is the layer of molten material beneath the crust. It has a plastic-like state of matter and is the thickest of Earth’s layers. Back to Menu

  11. What causes Earth’s magnetic field, and why is this field important?

  12. The spinning and churning of Earth’s liquid iron outer core. The magnetic field protects us from the Sun’s solar winds. Back to Menu Final Jeopardy

  13. Define heat.

  14. The energy transferred from a hotter object to a colder one. Back to Menu

  15. Trueor False: there are 4 types of heat transfer. Name them!

  16. False. There are 3 types of heat transfer: Conduction, Radiation, & Convection. Back to Menu

  17. Define Radiationheat transfer. Give two examples.

  18. Radiation is heat transfer through space (do not touch directly). Examples: the Sun & camp fire. Back to Menu

  19. If the formula for Densityis Massdivided by Volume, how can heat change an object’s density?

  20. Heat = Energy. Giving an object Energylets the particles move faster & further away from each other, increasing Volumeand decreasing Density. Back to Menu

  21. Describe the entire process pictured below in 5 steps, starting with the stove.

  22. Pot is heated by stove - Conduction Water is heated by pot - Conduction Heated water spreads out (energy), +Volume & -Density so it rises. Spreads out at top of pot, bumps into other particles, -Energy. Less energy means -Volume, +Density, water sinks. Back to Menu Final Jeopardy

  23. Which scientist proposed the theory of Continental Drift? Harry Hess J. Tuzo Wilson Alfred Wegener Mr. Antonello

  24. Harry Hess – Sea-Floor Spreading J. Tuzo Wilson – Plate Tectonics Alfred Wegener – Continental Drift Mr. Antonello – Theory of Awesomeness Back to Menu

  25. How many pieces of evidence for Continental Drift does the photo below contain? What are they?

  26. Three pieces of evidence. A) The continents fit like puzzle pieces. B)Mesosaurus fossils were found on both continents. C) Africa & S. America have the same folded mountains. Back to Menu

  27. What is Wegener’s Theory of Continental Drift and why was it rejected?

  28. The continents were once a supercontinent called Pangea, and are slowly moving, even now. Wegener had no evidence to explain what caused the continents to move. Back to Menu

  29. While researching in Antarctica, you discover the fossil remains of the tropical plant Glossopteris. This plant is native to Australia. What 2 things does this tell you about Antarctica?

  30. Antarctica and Australia were at one time connected (since the plant can not migrate across an ocean). • Antarctica once had a tropical climate. Back to Menu

  31. What do the reversing magnetic stripes on the ocean floor reveal? Use this information to explain the difference between “magnetic” North and “geographic” North.

  32. Stripes tell us that magnetic poles reverse every 300,000 years. GeographicNorth is always at 90⁰ North. MagneticNorth is where the magnetic field originates. Back to Menu Final Jeopardy

  33. Why is the theory of Sea-Floor Spreading important?

  34. Harry Hess It provides the final piece of evidence – the mechanism – for Continental Drift. Back to Menu

  35. Describe the Mid-Ocean Ridge and why it’s important.

  36. Underwater mountain range where magma cools to form new crust. Stretches across all the oceans of the world, driving sea floor spreading. Back to Menu

  37. Where is old crust destroyedand what is it called when the crust sinks back underneath, into the mantle?

  38. The crust is destroyed at deep-sea Trenches in a process known as Subduction. Back to Menu

  39. Studying the crust at the Mid-Ocean ridge reveals 3 pieces of evidence for Sea-floor Spreading. What are they?

  40. Formation of “pillow” basalts Reversing magnetic stripes Relative age dating of core samples Back to Menu

  41. Describe the process of Sea-floor Spreading and why it is like a conveyor belt.

  42. Magma rises at the Mid-Ocean Ridge Entering the ocean, magma cools into Basalt New magma rises and cools, spreadingthe rock out Old crust subductsunder less dense crust and melts The cycle repeats! Back to Menu Final Jeopardy

  43. Plate Tectonics states that plates in Earth’s lithospheremove by floating on the mantle. What are the 2 types of plates?

  44. Plates can be classified as either Continentalor Oceaniccrust. Back to Menu

  45. Plate Tectonics combines the theories of Alfred Wegener & Harry Hess with a method of heat transfer. Name the theories and method.

  46. Continental Drift & Sea-Floor Spreading and the heat transfer method of Convection. Back to Menu

  47. Describe the 3 types of boundaries symbolized by the following motions.

  48. Convergent (moving towards each other), Divergent (moving away), and Transform boundaries (sliding past one another). Back to Menu

  49. Locate & name the types of plate boundaries (and crust) in the picture below. What featuresare at these locations, & what is the missing boundary?

  50. Convergent: Oceanic/Oceanic crust Subduction zone Divergent: Mid-Ocean Ridge Transform Boundary (not shown) 2 1 Back to Menu

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