Earth's+Layers,+Heat+Transfer,+&+Plate+Tectonics

=Plate Tectonics=

=Journey to the Center of the Earth!=

Drawing the Earth to Scale. 1:2:3 ratio (Inner core:Outer core:Mantle)



= =

This is different than Magnetic North Pole!
=== Over the course of a year, this is how stars move around Polaris. Notice that Polaris does not move. This is why it is considered our partner in voyage. It can be depended upon to guide us by letting us know which way is North! (It is just not exactly our Magnetic North)===

Where exactly does this point?


=Heat Transfer=



=Continental Drift Theory= media type="custom" key="24274510" CLICK HERE FOR A GREAT WEBSITE ON CONTINENTAL DRIFT THEORY!

Here is the 4.3 packet for Homework. The second link is for a follow up Worksheet that will be done in class the next day. Complete it only if you miss the next day as well.

=Pangaea occurred about 250 Million years ago...= =It split into what two landforms around 150 MYA...= =What landforms did these two landforms split in to??? See below...=

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=Answer: Laurasia- N. America, Europe & Asia= =Gondwandaland- Africa, S. America, India, Australia, & Antactica=



=Sea Floor Spreading=



media type="custom" key="24274486"

=More Super Cool Videos on Mountains and the Mid-Ocean Ridge!= media type="custom" key="24238362" media type="custom" key="27961189" =Theory of Plate Tectonics= Study these sites as well as Pages 134-135 to get a visual of what each type of boundary creates.

Divergent Boundaries In the Ocean

Divergent Boundaries on Land

Convergent Boundaries Between Ocean-Continent

Convergent Boundaries Between Ocean-Ocean Plates

Convergent Boundaries Between Continental-Continental Plates

Transform Boundaries

= TEST PREP!!!!! =

Click on the pdf below for Diagram practice.



Review Worksheet:

Review Powerpoint: (in pdf format.)



= Essay: Know the type of boundary, the two types of crust involved (ocean/Cont), and any processed that happen at these locations: = = - Mid-ocean ridge = = - rift valley = = - trench = = - Mountain =

=__Bonus Test Questions:__=

2.Besides a Scientist, what other title did he have that makes this fact Ironic?
Click here for answers

3. What celestial object is above the Geographic North Pole? Give it's more scientific name.
=4. What is the degrees latitude of the Geographic North Pole?= =5. What the distance to the center of the Earth?= =6. click on the file below to see the Analogy Bonus onthe test. Worth 3% points!= ==