09 23-2013-principles

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09 23-2013-principles

  1. 1. Evocative Question (Page 28) How are the geologic principles for understandin g the Earth’s history like a layer cake?
  2. 2. Brainstorm Brainstorm with your group the answer the evocative question on page 28 in your notebook.
  3. 3. Foldable: Uniformitarianism Superposition Original Horizontality Catastrophism
  4. 4. Inside:  Look in pages 152-156 in your textbook.  Find the explanation for each of the geologic principles. (Original Horizontality is not in the book)  Write it on the notebook part of the inside of your foldable.  You have 7 minutes to find the information, and then we will
  5. 5. Uniformitarianism  The geologic processes that happen today (mountain building, volcanoes, rocks) happened the same way in the past AND change on the Earth is occurring slowly and constantly.  Brainstorm a simile about cake for the Principle of Uniformitarianism with your group. Write it in your foldable. The Principle of Uniformitarianism is like…
  6. 6. Superposition  In horizontal sedimentary rock layers, the oldest layer is at the bottom. Each higher layer is younger than the layers below it.  Brainstorm a simile about cake for the Principle of Superposition with your group. Write it in your foldable. The Principle of Superposition is like…
  7. 7. Original Horizontality Sediment settles out of water in horizontal layers. Larger sediment settles first and smaller sediment settles later. Sedimentary rocks form in horizontal layers.  Brainstorm a simile about cake for the Principle of Original Horizontality with your group. Write it in your foldable. The Principle of Original Horizontality is like…
  8. 8. Catastrophism  Geologic Change occurs suddenly  Brainstorm a simile about cake for the Principle of Catastrophism with your group. Write it in your foldable. The Principle of Catastrophism is like… http://www.flickr.com/photos/sylvia/5727154433/sizes/m/in/photostream/http://www.flickr.com/photos/sanfranannie/3639238588/sizes/m/in/photostream/
  9. 9. Evocative Question Brainstorm with your group and come up with a final answer to the evocative question.
  10. 10. Write Your Own Now, on your own, write one simile on page 29 for each of the geologic principles. With your simile, draw a picture that illustrates it.

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