Chapter test Plate Tectonics

Master plate tectonics with our engaging worksheet! Explore Pangaea, plate boundaries & more.

Multiple Choice Directions: select the correct response. What is Pangaea? a large ice sheet a fern that lives close to the equator a supercontinent made of the present-day continents What evidence suggests that continents were once joined? topography of the seafloor convergent plate boundaries the puzzle-like fit of coastlines Seafloor spreading is a process that destroys oceanic crust occurs at mid-ocean ridges causes continents to plow through the seafloor Magnetic stripes on the seafloor are evidence that . crust is destroyed at ridges. the seafloor is spreading. earthquakes are common in the ocean What happens at a transform plate boundary? plates slide past each other plates move toward each other plates move away from each other What causes tectonic plates to move? earthquakes in the crust convection in the mantle magnetism on the seafloor Matching Match each term with the correct definition. slab pull force created at a convergent plate boundary ridge push force created at divergent plate boundaries subduction zone located at a convergent plate boundary East African Rift located at a divergent plate boundary San Andreas Fault located at a transform plate boundary tectonic plates slabs of crust and upper mantle Label the diagram below by writing the correct term from the word bank on each line. magma mid-ocean ridge oceanic crust oceanic crust magma mid-ocean ridge What type of plate boundary is illustrated by the diagram above? convergent divergent transform Using the above diagram, where is the new crust being formed? at the mid-ocean ridge in the mantle under the mantle As the new oceanic crust is made, what happens to the older oceanic crust? it dissolves and floats away it is pushed away from the mid-ocean ridge it subducts under the oceanic crust Sort the evidence that supports the following theories: Continental Drift interlocking shape of coastline fossil clues coal deposits glacial grooves Seafloor Spreading magnetic striping pillow lava formations thermal differences in ocean rocks age and heat differences in rock samples T or F Normal polarity occurs when magnets will orient themselves to point south. True False T or F Reversed polarity occurs when magnets will orient themselves to point south. True False Using the above map, apply your knowledge of plate boundaries to describe why Mount St. Helens is a volcanic mountain. Choose from the drop-down options to complete each sentence. (You may need to scroll within the option box to view all answer choices.) Mount St. Helens is an example of a convergent plate boundary, where an oceanic plate and a continental plate collide. The oceanic plate will subduct under the continental plate because the oceanic plate is more dense. The subducting plate will melt, producing magma, which will rise to the surface and eventually erupt. Remembering the 1990 Luzon Earthquake Read the article and answer the questions that follow.Remembering the 1990 Luzon Earthquake 1.Why is the Philippines considered as the third most disaster-prone country in the world? 2. What valuable lessons did the 1990 Luzon earthquake leave? 3. The 1990 Luzon earthquake was the result of a horizontal left lateral strike-slip motion along the Philippines and Digdig Faults. How did this plate movement impact the lives of the Filipino people?