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Inside Earth
earth, science
Question | Answer |
---|---|
Composition layers are based on .... | what they are made of |
Physical layers are based on... | what they do/ their physical propeties |
The___ core is liquid | outer |
tecontic plates are pieces of the ___ floating on the ___ | lithosphere....asthenospere |
Define continental drift theory | all of the continents were once one big continent called Pangaea, but split apart and are still moving today. |
Who was the scientist who fist proposed continental drift theory? | Alfred Wegener |
3 peices of evidene that supports the CDT | fossils, continent fit together like puzzle pieces, some mountain ranges and rock types on the other part of the world. |
The super sontinent that once existed and contained all of the land was called? | Pangaea |
the main cause of the tectionic plate movment... | earths heat causes hot magma to rise making the plates move among the/ lithosphere |