Science notebook: vocab words Rivet Science notebook: vocab words
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pangaea All lands
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Oceanic plate uppermost layer of the oceanic portion of a tectonic plate
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Continental plate Tectonic plates that lie under surface land masses
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Continental drift The idea that the continents slowly moved over Earth’s surface
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Seafloor spreading The process that continually adds new material to the ocean floor
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Plate tectonics The theory that states that pieces of earth’s lithosphere are in slow, constant motion, driven by convection currents in the mantle
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plates The separate sections of the lithosphere.