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Changes Over Time

Changes Over Time. Week 2. constructive. To build something new. destructive. To destroy or tear down. elevation. Vertical distance, or height, above sea level. Plate tectonics. The theory that explains how parts of Earth’s crust have moved over time. Sea level.

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Changes Over Time

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  1. Changes Over Time Week 2

  2. constructive To build something new

  3. destructive To destroy or tear down

  4. elevation Vertical distance, or height, above sea level

  5. Plate tectonics The theory that explains how parts of Earth’s crust have moved over time

  6. Sea level The average height of the ocean’s surface, zero elevation

  7. peak The highest point of a mountain

  8. glacier A large mass or body of moving ice

  9. valley A low area between higher areas through which a river or stream often flows

  10. Slide 2: http://www.mpes.org/grade3/labtypesofrocks_files/image044.jpg http://www.sourcedesignsonline.com/creations/images/magma.jpg Slide 3: http://www.3mfuture.com/images/destructive-power-of-a-tsunami.jpg http://www.smh.com.au/ffximage/2006/07/18/tsunami_wideweb__470x321,0.jpg Slide 5: http://www.geography-site.co.uk/pages/physical/earth/images/plates.gif Slide 8: http://img2.travelblog.org/Photos/5059/19964/f/94593-Perito-Mereno-Glacier-1.jpg

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