Plate Tectonics -Analyzing a Diagram

Dive into plate tectonics! This worksheet helps 8th graders understand Earth's dynamic crust by analyzing tectonic plate diagrams.

The diagram shows several tectonic plates. The arrows indicate the direction each plate is moving. Study the diagram and answer the questions below. You will use this diagram for the next 9 questions.Where is an ocean trench most likely to form? F G H I Where is a continental rift valley most likely to form? E F I K Where would you find a convergent boundary? E F H K Where is a mid-ocean ridge most likely to form? G H I F Which is a good example of a transform boundary? E I J K The picture is here again so you do not have to scroll as far. Which is most likely to happen at I? Island arcs will form parallel to a trench. A spreading center will create a rift valley. Continental crust will be destroyed. Subduction will cause oceanic crust to melt. Why are earthquakes likely to occur at J? Two plates are spreading away from each other. Two plates are colliding with each other. Two plates are scraping past each other. One plate is sliding under another plate. Why are mountains likely to form at E? A rift valley is forming. Two plates are colliding. Magma is flowing upward. One plate is sinking. Which is most likely to happen at G? Rising magma will create new crust. Subduction will cause a deep trench. Colliding plates will cause rocks to crumple. Moving plates will create island arcs. What is the name of the ancient supercontinent shown above? Who developed the continental drift hypothesis? Harry Hess J. Tuzo Wilson Alfred Wegener W. Jason Morgan Which term refers to sections of Earth's crust and part of the upper mantle? asthenosphere plate lithosphere core How fast do plates move each year? a few millimeters each year a few centimeters each year a few meters each year a few kilometers each year Where do Earth's plates slide past each other? convergent boundaries divergent boundaries transform boundaries subduction zones Use this diagram to answer the next two questions.Suppose that the arrows in the diagram represent patterns of convection in Earth's mantle. Which type of plate boundary is most likely to occur along the region labeled "A"? Which statement is true of the region marked "B" on the diagram? Plates move past each other sideways. Plates move apart and volcanoes form. Plates move toward each other and volcanoes form. Plates are not moving.