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Continental drift
science
12
Science
7th Grade
02/23/2014

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Term
continental drift
Definition
the theory that the continents are moving
Term
pangea
Definition
the state when all of the continents were together
Term
Alfred Wegener
Definition
German meteorologist. He came up with the theory that the continents were connected.
Term
1 evidence
Definition
that the continents looked like they fit together
Term
2 evidence
Definition
they found fossils in the same place that looked like they fit together
Term
3 evidence
Definition
he found rocks and geological structures that were the same in different places,
Term
4 evidence
Definition
climate data like how tropical places had glaciers.
Term
why tectonics move
Definition
the hot air pushes up to the surface then eventually dies down
Term
rift valley
Definition
when continental plates pull apart
Term
subduction
Definition
when oceanic and continental plates collide
Term
seafloor spreading
Definition
a mid ocean range like the mid Atlantic, forms plates continue to seperate
Term
continental division
Definition
where two continental plates collide
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