Continental Drift concepts
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1. Who is credited with first proposing the Continental Drift Theory in the early 20th century?
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2. True or False: The Earth's tectonic plates float on the solid, rigid layer of the mantle called the lithosphere.
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3. What was the name of the single supercontinent that existed millions of years ago?
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4. What does the Greek word "pan" in "Pangaea" mean?
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5. True or False: The distribution of ice sheets in the southern hemisphere is considered geological evidence for the existence of Pangaea.
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6. The theory proposing that the continents were once joined and have since drifted apart is known as the ____________________ Theory.
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7. The word "Pangaea" comes from the Greek words "pan" meaning all and "gaea" meaning ____________________.
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8. The process that explains the movement of continents and is driven by the movement of tectonic plates is called ____________________.
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9. The Continents began breaking apart from Pangaea around _______________ million years ago.
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10. The deep ocean trenches, mid-ocean ridges, and transform faults are geological features associated with the ____________________ Plate Theory.
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11. What are the four main categories of evidence used to support the Continental Drift Theory?
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12. Describe the "jigsaw fit" evidence that supports the idea that continents were once connected.
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13. How does the Continental Drift Theory explain the formation of mountains?
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14. How are the Continental Drift Theory and the Tectonic Plate Theory related? Explain which theory provides the mechanism for the other.
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15. List two types of biological evidence (fossils) that support the existence of Pangaea.
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16. According to the presentation, what are the three geological pieces of evidence for the Continental Drift Theory?
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17. How does the mid-ocean ridge contribute to the movement of continents?
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18. What is a "crustal feature" that is NOT a plain, mountain, or plateau?
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19. The continents' movements can affect climate and where plants and animals can live. Give one example of how this might happen.
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20. Which briefly explains the major sequence of events of the Continental Drift Theory, from the formation of Pangaea to the present day?
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