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objective 9

vocab

TermDefinition
continental drift hypothesis that continents are in constant motion
mantle middle layer of earth situated between the crust above and the core below
pangea ancient supercontinetnt composed of land that forms today's coninents
mid ocean range mountain range located on the sea floor in the middle of the ocean
sea floor spreading new oceanic crust forms at mid ocean range as old oceanic crust moves away
convection circulation of material caused by differences in temperature and density
convergent plate boundary where two plates collide
divergent plate boundary where two plates separate
lithosphere cold rigid outermost rock layer of earth
plate tectonics theory that Earth's surface is made of rock plates that more with respect to each other
subduction sinking below a more buoyant plate at a convergent plate boundary
transform plate boundary where two plates slide by each other
Created by: user-2006884
 

 



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