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Troy Barthelme
Continental drift
21
Science
7th Grade
02/19/2014

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Cards

Term
continental drift
Definition
continents drifted to there current location
Term
fossil clues
Definition
similar plant and animal fossils found
Term
climate clues
Definition
both sides of the Atlantic Ocean
Term
rock clues
Definition
similar rock types found on both sides of the Atlantic Ocean
Term
seafloor spreading
Definition
molten rock pushed through at mid-Atlantic ridge
Term
proposed by wagner
Definition
continental drift
Term
problems with theory
Definition
Wegener's Idea
Term
glacial evidence
Definition
climate clues
Term
proposed by hess
Definition
seafloor spreading
Term
magnetic clues
Definition
seafloor spreading
Term
h
Definition
Term
plate tectonics theory
Definition
crustal sections (plates) move around on mantle
Term
Plates move on convection theory
Definition
plate tectonics
Term
plate boundaries
Definition
where plates meet types of boundaries
Term
convergent
Definition
plates come together
Term
continental collision
Definition
two continental plates collide and form mountains
Term
subduction
Definition
denser oceanic plate go under less dense continental plates
Term
divergent
Definition
plates spread apart
Term
seafloor spreading
Definition
two oceanic plates move apart
Term
rift valley
Definition
two continental plates move apart
Term
transofm
Definition
plates slide next to each other
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