Week 10: Layers of Earth & Convection Cells




                          








  1. What did you do in lab today?

    1. We looked into why earthquakes and volcanoes take place on boundaries, like in Iowa. 

      1. Fracking in the United States has led to an increase in earthquakes around the US. 

    2.  We also experimented with rice cakes, graham crackers, and whipped cream to make different plate boundaries. We made divergent, transform, and two different kinds of convergent plate boundaries. 

  2. What was the big question?

    1. What can form at the three types of plate boundaries? 

  3. What did you learn in Thursday’s discussion?

    1. At the Mid-Atlantic Ridge, the plates are moving apart from one another.
    2. As you move from the middle of the Atlantic toward the African coastline, it's getting older.

  4. Read chapter 10 of the textbook.

    1. What did you learn?

      1. The crust

        1. Made of rocks like basalt and granite, and is very thin compared to the other layers 

        2. The crust is broken into 2 types of plates: continental and oceanic plates

          1. Continental plates are thicker than oceanic plates 

      2. The mantle

        1. The largest and thickest layer of the Earth 

        2. The upper part of the mantle is made of magma 

        3. The plate tectonics float on this layer, which is how they move 

      3. The core 

        1. Inner and outer core 

          1. The liquid outer core is mostly made of iron and nickel 

          2. The solid inner core is also made of iron and nickel 

            1. Solid because the materials are under intense pressure 

    2. What was the most helpful?

      1. I found the part where it was describing the layers of the Earth to be helpful. We talked about it in lab, but it was useful to be able to read about them and get some more details. I also liked how this chapter talked about the different tectonic plate boundaries. This was helpful in learning how to separate them and to know what will form in each scenario. 

    3. What do you need more information on?

      1. I do not need any more information on any of the topics that were covered in the textbook. 

  5. What questions, concerns, and/or comments do you have? 

    1. I do not have any questions, concerns, and/or comments.

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