1. Layers of the Earth and Continental Drift Jeopardy
Earth’s Interior
Layers of the Earth
Drifting Continents
Seafloor Spreading
100
200
300
400
500
Inside Earth Chapters 1.1 – 1.4
FIX 22, 23, 19??

2. A _________ is one of the 7 great landmasses on earth.
“Earth’s Interior” for 100
A _________ is one of the 7 great landmasses on earth.

3. continent

4. “Earth’s Interior” for 200
A geologist is a scientist who studies the ________ that make and shape planet Earth.

5. forces

6. “Earth’s Interior” for 300
Forces that BUILD UP mountains and landmasses are called ____________________

7. constructive forces

8. Forces that wear away mountains are called _____________________
“Earth’s Interior” for 400
Forces that wear away mountains are called _____________________

9. destructive forces

10. “Earth’s Interior” for 500
________ waves occur during an earthquake, and geologists use them to learn about the interior of the earth.

11. Seismic waves occur during an earthquake, and geologists use them to learn about the interior of the earth.

12. The _______ is composed of the crust and upper mantle.
“Layers of the Earth ” for 100
The _______ is composed of the crust and upper mantle.

13. The lithosphere is composed of the crust and upper mantle.

14. Which part of the earth is a dense ball of iron and nickel?
“Layers of the Earth ” for 200
Which part of the earth is a dense ball of iron and nickel?

15. The inner core

16. “Layers of the Earth ” for 300
The upper mantle contains this soft, plastic-like layer called the _____.

17. The upper mantle contains this soft, plastic-like layer called the asthenosphere.

18. “Layers of the Earth ” for 400
Because earth has a spinning inner core, earth has poles and acts as a ________.

19. Because earth has a spinning inner core, earth has poles and acts as a magnet.

20. Name the 5 layers of the earth in order from outside to inside.
“Layers of the Earth ” for 500
Name the 5 layers of the earth in order from outside to inside.

21. crust
upper mantle
lower mantle
outer core
inner core

22. Because earth has a spinning inner core, earth has poles and acts as a magnet.

23. scavenger

24. “Drifting Continents” for 100
Alfred Wegner believed all of earth’s continents were once joined together in a single landmass called _______.

25. Alfred Wegner believed all of earth’s continents were once joined together in a single landmass called Pangaea.

26. Explain the theory of continental drift.
“Drifting Continents” for 200
Explain the theory of continental drift.

27. Many years ago, Pangaea began to break apart
Many years ago, Pangaea began to break apart. The pieces drifted to their present day locations and are now known as our 7 continents.

28. Explain the fossil evidence for Continental Drift.
“Drifting Continents” for 300
Explain the fossil evidence for Continental Drift.

29. Fossils of certain species have been found across several continents giving evidence that the continents were once connected.

30. Explain the landform evidence for Continental Drift.
“Drifting Continents” for 400
Explain the landform evidence for Continental Drift.

31. Mountain ranges in Africa line up with mountain ranges in South America giving evidence for Continental Drift.

32. “Drifting Continents” for 500
Explain the glacial evidence for Continental Drift.

33. Deep scratches in rocks from glaciers have been found on South America, Africa, and India whose climates are much too warm for glaciers today.

34. “Seafloor Spreading” for 100
Learning that the seafloor ________ gave the best evidence to Wegener’s theory of c__________ d________.

35. Learning that the seafloor spreads gave the best evidence to Wegener’s theory of continental drift.

36. Name this region of the ocean floor and explain what happens here.
“Seafloor Spreading” for 200
Name this region of the ocean floor and explain what happens here.

37. This is the mid-ocean ridge
This is the mid-ocean ridge. Here, magma erupts, pushing the oceanic crust toward the subduction zones.

38. Name these regions of the ocean floor and explain what happens here.
“Seafloor Spreading” for 300
Name these regions of the ocean floor and explain what happens here.

39. These are the deep-ocean trenches
These are the deep-ocean trenches. Here the oceanic crust subducts under the continental crust going back into the mantle and becoming magma once again.

40. “Seafloor Spreading” for 400
Why does the ocean crust turn to magma when it subducts below the continental crust.

41. The oceanic crust turns to magma because of heat and pressure.

42. “Seafloor Spreading” for 500
Explain why the theory of sea-floor spreading supports the theory of continental drift.

43. Knowing that the sea-floor spreads gives evidence that the oceanic crust pushes against the continental crust, causing the continents to move centimeters per year.