Chapter6 by Rayne Hicks https://padlet.com/raynehicks2_1/lqy3kgxqnxnx :) en-us 2019-01-25 15:15:54 UTC 2025-10-05 12:17:38 UTC hello@padlet.com http://mercuriuscreative.com/wp-content/uploads/2015/12/earth.png ┏━━━━━━━━━┓ 6.1 Continental Drift raynehicks2_1 https://padlet.com/raynehicks2_1/lqy3kgxqnxnx/wish/324354709   ┗━━━━━━━━━━━┛
Continental drift was first hypothesized by Alfred Wegener, a german researcher. He set out to find evidence that the continents were once all together and one bug land mass. His evidence included:  
  • Fit of the continents
  • Distribution of fossils
  • Distribution of rocks and structures
  • Climate zones
  • Glaciers
  • Tropics 

PANGEA IS THE SUPERCONTINENT
]]> 2019-01-25 15:22:21 UTC https://padlet.com/raynehicks2_1/lqy3kgxqnxnx/wish/324354709 ┏━━━━━━━━━┓ 6.2 Seafloor Spreading Hypothesis raynehicks2_1 https://padlet.com/raynehicks2_1/lqy3kgxqnxnx/wish/326319139 ┗━━━━━━━━━━━┛
Seafloor spreading observation has concluded that the continents have moved. Some observations are that the sea has a large mountain range, the magnetic polarity changes, and the youngest seafloor is at the ridge.

Seafloor spreading is caused by hot magma rising into rift valleys at mis-ocean ridges then cools to form seafloor. Also, moving crust pushes continents away from ridge axis
]]> 2019-01-31 15:39:53 UTC https://padlet.com/raynehicks2_1/lqy3kgxqnxnx/wish/326319139 ┏━━━━━━━━┓ raynehicks2_1 https://padlet.com/raynehicks2_1/lqy3kgxqnxnx/wish/326325406 6.3 Earth's Tectonic            Plates
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The plates that are part of earth are slabs of Earth's lithosphere that move on the surface. The portions were discovered during the Cold War (Vietnam War). Much like how the observation of seafloor spreading was proven during World War 2. 
The lithospheric plates are made of the oceanic and continental crust. (they can just be one, or both). Lithospheric plates can also rise and sink in the mantle.]]> 2019-01-31 15:51:32 UTC https://padlet.com/raynehicks2_1/lqy3kgxqnxnx/wish/326325406 raynehicks2_1 https://padlet.com/raynehicks2_1/lqy3kgxqnxnx/wish/326329305 jm mcbsd KC M N mc MSDv jshckadwvjgabf,v afjhbvhdksvba basfjvbhkFVBSHDBVkhsdbvshbVHSDBVhjsdvskdhBVkdhbvkhdbvkhsdbvkhsdvbskhdbvkhsdBVKHsdbvkhdbvkhdBVKHbvhsdbvkhdbvhkbvkshdbvkhsdbVKHsdbvkhsdbvkhsdbkhsdvkhsdvbkhdsbskhdbkdhsvbvdhkbkhsdvbKHDSbvshkdbksh JKBlviwgeLYDCKsdsdjdvjefjdvjadsvhbqKBVAHJBV AHBV JAHMBV KSHVB AMSFBVKAFSNBVAKFSMBVAKSFJBVAKSJFBVAKFBVAKFJVBAKSJCVBKASBVCKDASBVABVBSVKABVKASBVKASBVAKSBDVKASBVKJBSVKAJSBVKJASVBKJFBVKJFBVAKJFBVKAJFBVKJDVBSKJVBAKJBKJVBKFJBKFAJBFKJBKFJBAFKJBVKJBFJ]]> 2019-01-31 15:58:54 UTC https://padlet.com/raynehicks2_1/lqy3kgxqnxnx/wish/326329305 raynehicks2_1 https://padlet.com/raynehicks2_1/lqy3kgxqnxnx/wish/326330771 Scroll down to see diagram and rest of information]]> 2019-01-31 16:01:31 UTC https://padlet.com/raynehicks2_1/lqy3kgxqnxnx/wish/326330771 ┏━━━━━━━━┓ 6.4 Tectonic Plate Motion raynehicks2_1 https://padlet.com/raynehicks2_1/lqy3kgxqnxnx/wish/326332123  ┗━━━━━━━━━┛

Tectonic plate move only 5 centimeters per year (about the same as our fingernails). The plates moving are caused by convection (rising and sinking of hot and cool material in the mantle). The plates would move horizontally away from mid-ocean crest then cool and sink back down into the mantle at deep sea trench. SO, seafloor spreading takes place as plates move apart at mid-ocean ridge.

]]> 2019-01-31 16:04:04 UTC https://padlet.com/raynehicks2_1/lqy3kgxqnxnx/wish/326332123 ┏━━━━━━━━┓ 6.5 Theory of plate tectonics raynehicks2_1 https://padlet.com/raynehicks2_1/lqy3kgxqnxnx/wish/326336125  ┗━━━━━━━━━┛

The plate tectonics theory brings together continental drift and seafloor spreading. The theory explains most of the features of Earth's surface. It explains why earthquakes, volcanoes, and mountains are the way they are. It also explains where to find mineral resources. Explains why:
•Earth’s geography has changed over time and continues to change today.
 • some places are prone to earthquakes while others are not.
• certain regions may have deadly, mild, or no volcanic eruptions.
• mountain ranges are located where they are.
• many ore deposits are located where they are.
• living and fossil species of plants and animals are found where they are.
• some continental margins have a lot of geological activity, and some have none.

]]> 2019-01-31 16:11:17 UTC https://padlet.com/raynehicks2_1/lqy3kgxqnxnx/wish/326336125 raynehicks2_1 https://padlet.com/raynehicks2_1/lqy3kgxqnxnx/wish/326337580 another little fun thing for continental drift.]]> 2019-01-31 16:13:48 UTC https://padlet.com/raynehicks2_1/lqy3kgxqnxnx/wish/326337580