Earth's Layers, CDT, SFS

The "weak" layer of the Earth's layers is called the ____________________.

___________________ proposed the Continental Drift Theory in 1912.

The mantle consists of  "plastic rock" because of the rock's ability to ______________.

_____________________ is evidence of seas floor spreading...

____________________ proposed the Theory of Seafloor Spreading during World War 2

Which are considered evidence for Continental Drift Theory?

The ______________________ is a liquid layer and is responsible for the Earth's magnetic field.

In relation to the Mid Ocean Ridge, the oldest rocks are 

The composition of the continental crust is ______________________.

Wegener's theory was rejected because of a lack of ...

All of the crust plus the top of the mantle that is rigid is called the ________________.

The boundary that separates the crust and the mantle is called the _____________________.

Geologists call the super-continent _____________, meaning "all earth".

The Earth's inner most layer is called  _____________________ and is made of iron and nickel.

New ocean crust is created along the Mid Ocean Ridge and pushing continents apart describes....

The composition of the ocean crust is ______________________.