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Plate Tectonic Drawings ... On the diagram below, draw arrows in the boxes to indicate the direction of plate movement. Then, draw the motion of the "magma.
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*Student answers will vary. We’ve provided some suggestions below based on the performance expectations.
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Set aside the model of convergent and divergent plates to prepare a new model for island chain formation.
Using the mesh material (remember, this also represents one of Earth's plates), hold it flat and free from any surface.
With help from another partner, hold the can under the plate and point it upwards.
What do you think will happen when magma squirts upwards through the plate?
Gently squirt a small amount of magma three times (stay still as you squirt the can!) and slowly move the plate after each squirt.
What happened?
On the diagram below, draw arrows in the boxes to indicate the direction of plate movement. Then, draw the motion of the "magma."
Challenge : Scrape the excess magma into the tub and see if you can recreate the Hawaiian Island Chain!