Question

name: addi l. tectonic explorer 1. go to the following website: https://tectonic - explorer.concord.org 2. click on the yellow \plate tectonics\ button on the left. 3. click on the \2 plates\ button. 4. draw 2 continents; one on either side of the red zig - zag line. similar to what is shown in the picture to the right. a. what do you think the red zig zag line represents? mid - ocean range b. based on what you learned about yesterday, what process will most likely occur at this red zig zag line? include the name of the process as well as a brief summary of what happens during that process. use the image to the right to support your answer. 5. click the yellow
ext\ button at the bottom right. 6. click and drag on the top of the continents to draw two force vectors. draw them so that they are pointing in opposite directions, similar to what is shown in the picture to the right. 7. click the yellow
ext\ button at the bottom right. 8. keep the plate densities such that plate 1 has the lowest density and plate 2 has the highest density. a. make a prediction: if the plates separate on one side of earth, then they must meet again (moving towards each other) on the other side of the earth. what will happen when those two plates collide, based on their densities?

Explanation:

a. The red zig - zag line represents a mid - ocean ridge. Mid - ocean ridges are underwater mountain ranges formed by plate tectonics.
b. The process is seafloor spreading. Magma rises from the mantle at the mid - ocean ridge, cools and solidifies to form new oceanic crust, pushing the existing plates apart.
8a. When the two plates with different densities collide, the denser plate (Plate 2) will subduct beneath the less dense plate (Plate 1). Subduction occurs as the denser plate is pulled down into the mantle due to gravity.

Answer:

a. A mid - ocean ridge.
b. Seafloor spreading. Magma rises from the mantle, cools and forms new oceanic crust, pushing plates apart.
8a. The denser plate (Plate 2) will subduct beneath the less dense plate (Plate 1).