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Warm-Up

Warm-Up. What is happening in the Mantle of the Earth that causes the tectonic plates to move?. Time’s Up!. Continental Drift. Continental Drift. Plate tectonics originated as an idea called continental drift. Continental Drift: The continents are moving. . Making Inferences.

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Warm-Up

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  1. Warm-Up • What is happening in the Mantle of the Earth that causes the tectonic plates to move? Time’s Up!

  2. Continental Drift

  3. Continental Drift • Plate tectonics originated as an idea called continental drift. • Continental Drift: The continents are moving.

  4. Making Inferences • Observation: Information that can be collected using your senses. • Inference: a conclusion made based on observations.

  5. Continental Drift • Lets identify and label the different continents on our blank map. • North America • South America • Africa • Europe • Asia/India • Australia • Antarctica

  6. Continental Drift • Take 2 minutes to observe the world map. • One observation I would make is that the coast lines are uneven rather than smooth and straight. • Make 2 more observations about the continents coast lines. • Make 1 inference based on your observation End

  7. Continental Drift • Puzzle (4 minutes) • Work with your partner to try and fit the continent puzzle pieces together. End

  8. Continental Drift • Do they fit together perfectly? • What may have caused the coastlines to change over time? • Come up with 2 possible reasons (2 minutes) End

  9. Evidence of Continental Drift • The continents fit together.

  10. Continental Drift • Look at the small pictures on your puzzle pieces. • Those are fossils found in those areas of each continent. • Take 2 minutes to observe the fossil placement. • Make 3 observations (the same fossils are on more than one continent) • Make 1 inference End

  11. Continental Drift • Rearrange your puzzle so that all of the fossil segments line up. (3 minutes) End

  12. Evidence of Continental Drift • Fossils of the same animals are found along the coasts of different continents.

  13. Continental Drift • Take 2 minutes to draw in dots along the plate boundaries to show recent earthquakes. (large dots = more activity, small dots = less activity) End

  14. Continental Drift • Take 2 minutes to draw in triangles to show volcanic activity. End

  15. Continental Drift • Take 2 minutes to observe the marks you just made on your map. • Make 3 observations (earthquakes and volcanoes occur in the same sorts of locations) • Make 1 inference End

  16. Continental Drift • Draw the arrows in each continent to show what direction each is moving. (2 minutes) End

  17. Evidence of Continental Drift • Seismic, volcanic, and geothermal activity along plate boundaries.

  18. Evidence of Continental Drift • Mid-Atlantic Ridge (Sea floor spreading)

  19. Pangaea • 300 million years ago scientists believe that all of Earth’s landmass was together in one single supercontinent. • Over the past 300 million years the continents have spread apart from each other.

  20. SCR • Today you learned about all of the evidence supporting continental drift. Using that information make a prediction about what Earth’s continents will look like in 100 million years. Make sure to support your claim with at least three pieces of evidence and provide commentary for each.

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