The document discusses geologic principles for understanding the Earth's history. Students are asked to brainstorm how these principles are like a layer cake. The principles discussed are uniformitarianism, superposition, original horizontality, and catastrophism. For each principle, students come up with a simile comparing it to a layer cake and illustrate it. They then answer the evocative question of how the geologic principles are like a layer cake by brainstorming as a group.
4. Inside:
๏จ Look in pages 152-156 in your
textbook.
๏จ Find the explanation for each of the
geologic principles. (Original
Horizontality is not in the book)
๏จ Write it on the notebook part of the
inside of your foldable.
๏จ You have 7 minutes to find the
information, and then we will
5. Uniformitarianism
๏จ 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.
๏จ Brainstorm a simile about cake for the
Principle of Uniformitarianism with your group.
Write it in your foldable. The Principle of
Uniformitarianism is likeโฆ
6. Superposition
๏จ In horizontal sedimentary rock layers, the
oldest layer is at the bottom. Each higher layer
is younger than the layers below it.
๏จ Brainstorm a simile about cake for the
Principle of Superposition with your group.
Write it in your foldable. The Principle of
Superposition is likeโฆ
7. Original Horizontality
๏จSediment settles out of water
in horizontal layers. Larger
sediment settles first and smaller
sediment settles later. Sedimentary
rocks form in horizontal layers.
๏จ 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 likeโฆ
8. Catastrophism
๏จ Geologic Change occurs suddenly
๏จ Brainstorm a simile about cake for the
Principle of Catastrophism with your group.
Write it in your foldable. The Principle of
Catastrophism is likeโฆ
http://www.flickr.com/photos/sylvia/5727154433/sizes/m/in/photostream/http://www.flickr.com/photos/sanfranannie/3639238588/sizes/m/in/photostream/
10. Write Your Own
๏จNow, on your own, write
one simile on page 29 for
each of the geologic
principles.
๏จWith your simile, draw a
picture that illustrates it.