Form 5: Mid-Ocean Ridges and Seafloor Spreading Basics Exercise

Form 5: Mid-Ocean Ridges and Seafloor Spreading Basics

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Form 5: Mid-Ocean Ridges and Seafloor Spreading Basics

Learn about mid-ocean ridges and the fundamentals of seafloor spreading. Understand how new oceanic crust forms as tectonic forces push plates apart.

Questions

  1. MultiChoice

    Who proposed the theory of seafloor spreading in the early 1960s?

  2. MultiChoice

    What happens during the process of seafloor spreading?

  3. MultiChoice

    Where is the newest oceanic crust located?

  4. MultiChoice

    Where is the oldest oceanic crust located?

  5. MultiChoice

    What rises to the surface at mid-ocean ridges to form new crust?

  6. MultiChoice

    What dark fine-grained igneous rock forms when erupting lava cools on the ocean floor?

  7. MultiChoice

    What is the longest continuous mountain chain on Earth?

  8. MultiChoice

    What happens to older oceanic crust as new crust forms at a mid-ocean ridge?

  9. MultiChoice

    How did seafloor spreading help support Wegener's continental drift hypothesis?

  10. MultiChoice

    What heat-driven process in Earth's interior drives seafloor spreading?

  11. MultiChoice

    What distinct rounded lava formations form when lava erupts under cold ocean water?

  12. MultiChoice

    What feature forms along the central axis of a mid-ocean ridge where plates pull apart?