Science

8th

grade

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Unit 5 - 3 Week Review

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  • 1. Multiple Choice
    2 minutes
    1 pt
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    The diagram below models two tectonic plates sliding past one another. This type of plate

    movement is common with oceanic plates. As the plates push against one another, pressure

    builds up in the form of tension. All of the tension is released when the plates begin to move.


    According to the information and diagram above, which force is responsible for the plate

    movement?

    Balanced

    Gravitational

    Frictional

    Unbalanced

  • 2. Multiple Choice
    2 minutes
    1 pt
    Image

    Students examine a map that shows the movement of the two tectonic plates.


    Each student writes a description of the tectonic activity and why they think it is occurring.

    Which explanation best describes the impact of Newton’s Laws on the movement of these

    plates?

    The North American Plate is subducting underneath the Eurasian Plate because equal and

    opposite forces are acting on them.

    The forces acting on both plates cause them to diverge until they are acted upon by

    another force.

    The Eurasian Plate and the North American Plate are converging because the forces

    acting on them are balanced.

    Balanced forces are acting the Eurasian Plate and the North American Plate causing them

    to diverge.

  • 3. Multiple Choice
    2 minutes
    1 pt
    Image

    The image models the process of Pangea breaking up into modern day continents.


    Which of the following best explains why Pangea broke apart into modern day continents?

    Earthquakes and volcanoes formed between the continents.

    Changing climate caused ice to form between the plates.

    Balanced forces caused a change in the motion of the plates.

    The plates underlying the continents were already in motion.

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