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What is a Theory?
What is Pangaea?

What is Continental Drift?
=

Alfred Wegener: German scientist
Geologists study
rocks and fossils.

Wegener was a geologist.
?
1912: The Theory of Continental Drift

Alfred Wegener
land
1912: The Theory of Continental Drift

idea

Alfred Wegener

movement
1912: The Theory of Continental Drift

Wegener studied fossils from South American and Africa. He saw some fossils were th...
1912: The Theory of Continental Drift

Wegener studied fossils from South American and Africa. He saw some fossils were th...
1912: The Theory of Continental Drift

Wegener studied fossils from South American and Africa. He saw some fossils were th...
1912: The Theory of Continental Drift

Wegener studied fossils from South American and Africa. He saw some fossils were th...
1912: The Theory of Continental Drift

Some fossils were the same. How did that happen?
1912: The Theory of Continental Drift
1912: The Theory of Continental Drift
Pange
Wegener wrote an article about this theory. He invented the name ‘Pangea.’
Pangea.
From the Greek words
Pan = ‘all’ and
Gaia = ‘Earth’
Pangea, the Supercontinent
Eurasia

Africa

Australia

Antarctica
65,000,000 years ago
Now
http://pubs.usgs.gov/gip/dynamic/historical.html#anchor4833509
1,600,000,000 years ago
Today
Copyright: C. R. Scotese, PALEOMap Project
http://www.ucmp.berkeley.edu/geology/anim1.html
Copyright: C. R. Scotese, PALEOMap Project
http://www.ucmp.berkeley.edu/geology/anim1.html
Copyright: C. R. Scotese, PALEOMap Project
http://www.ucmp.berkeley.edu/geology/anim1.html
Copyright: C. R. Scotese, PALEOMap Project
http://www.ucmp.berkeley.edu/geology/anim1.html
Copyright: C. R. Scotese, PALEOMap Project
http://www.ucmp.berkeley.edu/geology/anim1.html
Copyright: C. R. Scotese, PALEOMap Project
http://www.ucmp.berkeley.edu/geology/anim1.html
Question: Why are the continents drifting?
This is a plate.

This is a plate.

Answer: Plate tectonics
This is a plate.

This is a plate.

plate = land
tectonics = building or moving
Answer: Plate tectonics
This is a plate.

This is a plate.
This is a plate.

This is a plate.
This is a plate.

Answer: Plate tectonics
http://dogfoose.com/2011/03/plate-tectonics/
The red areas around the plates (the plate boundaries) are ‘hot zones’ where
earthquakes happen.
The red areas around the plates (the plate boundaries) are ‘hot zones’ where
earthquakes happen.
How do the plates move?
Earthquakes
happen between
the plates.

1. Plates slide past each other.
Example: The San Andreas Fault in California
Volcanoes erupt
between the plates under
the ocean. The ocean
floor bigger.

2. Plates separate from each other.
Example: This Rift Valley in East Africa
Crashing plates make
mountains.

3. Plates crash into each other.
http://www.divediscover.whoi.edu/tectonics/tectonics-col...
3. Example: Mountains in Peru, South America
Will the continents continue to drift?
What will the earth look like in the future?
Will the continents continue to drift?
What will the earth look like in the future?
http://files.myopera.com/edwardpiercy/...
finis
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Transcript of "Pangaea USE"

  1. 1. What is a Theory? What is Pangaea? What is Continental Drift?
  2. 2. = Alfred Wegener: German scientist
  3. 3. Geologists study rocks and fossils. Wegener was a geologist.
  4. 4. ? 1912: The Theory of Continental Drift Alfred Wegener
  5. 5. land 1912: The Theory of Continental Drift idea Alfred Wegener movement
  6. 6. 1912: The Theory of Continental Drift Wegener studied fossils from South American and Africa. He saw some fossils were the same.
  7. 7. 1912: The Theory of Continental Drift Wegener studied fossils from South American and Africa. He saw some fossils were the same.
  8. 8. 1912: The Theory of Continental Drift Wegener studied fossils from South American and Africa. He saw some fossils were the same.
  9. 9. 1912: The Theory of Continental Drift Wegener studied fossils from South American and Africa. He saw some fossils were the same.
  10. 10. 1912: The Theory of Continental Drift Some fossils were the same. How did that happen?
  11. 11. 1912: The Theory of Continental Drift
  12. 12. 1912: The Theory of Continental Drift
  13. 13. Pange Wegener wrote an article about this theory. He invented the name ‘Pangea.’
  14. 14. Pangea. From the Greek words Pan = ‘all’ and Gaia = ‘Earth’
  15. 15. Pangea, the Supercontinent
  16. 16. Eurasia Africa Australia Antarctica
  17. 17. 65,000,000 years ago
  18. 18. Now
  19. 19. http://pubs.usgs.gov/gip/dynamic/historical.html#anchor4833509
  20. 20. 1,600,000,000 years ago
  21. 21. Today
  22. 22. Copyright: C. R. Scotese, PALEOMap Project http://www.ucmp.berkeley.edu/geology/anim1.html
  23. 23. Copyright: C. R. Scotese, PALEOMap Project http://www.ucmp.berkeley.edu/geology/anim1.html
  24. 24. Copyright: C. R. Scotese, PALEOMap Project http://www.ucmp.berkeley.edu/geology/anim1.html
  25. 25. Copyright: C. R. Scotese, PALEOMap Project http://www.ucmp.berkeley.edu/geology/anim1.html
  26. 26. Copyright: C. R. Scotese, PALEOMap Project http://www.ucmp.berkeley.edu/geology/anim1.html
  27. 27. Copyright: C. R. Scotese, PALEOMap Project http://www.ucmp.berkeley.edu/geology/anim1.html
  28. 28. Question: Why are the continents drifting?
  29. 29. This is a plate. This is a plate. Answer: Plate tectonics
  30. 30. This is a plate. This is a plate. plate = land tectonics = building or moving
  31. 31. Answer: Plate tectonics
  32. 32. This is a plate. This is a plate. This is a plate. This is a plate. This is a plate. Answer: Plate tectonics
  33. 33. http://dogfoose.com/2011/03/plate-tectonics/
  34. 34. The red areas around the plates (the plate boundaries) are ‘hot zones’ where earthquakes happen.
  35. 35. The red areas around the plates (the plate boundaries) are ‘hot zones’ where earthquakes happen.
  36. 36. How do the plates move?
  37. 37. Earthquakes happen between the plates. 1. Plates slide past each other.
  38. 38. Example: The San Andreas Fault in California
  39. 39. Volcanoes erupt between the plates under the ocean. The ocean floor bigger. 2. Plates separate from each other.
  40. 40. Example: This Rift Valley in East Africa
  41. 41. Crashing plates make mountains. 3. Plates crash into each other. http://www.divediscover.whoi.edu/tectonics/tectonics-collide.html
  42. 42. 3. Example: Mountains in Peru, South America
  43. 43. Will the continents continue to drift? What will the earth look like in the future?
  44. 44. Will the continents continue to drift? What will the earth look like in the future? http://files.myopera.com/edwardpiercy/blog/6-Future-250AP-2.jpg
  45. 45. finis
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