Geology Units A, B, C, & D: Earth's Structure & Plate Tectonics

Front

Four major layers of Earth:

Back

mantle, inner core, outer core, crust

Front

Thinnest layer of the Earth?

Back

Crust

Front

Hottest layer of the Earth?

Back

Inner core

Front

Layer of Earth we live on?

Back

Crust

Front

Thickest layer of the Earth?

Back

Mantle

Front

Layer of Earth mostly made of iron and nickel?

Back

Inner core

Front

Least explored Earth layer?

Back

Inner core

Front

Wegner's continental drift hypothesis was initially rejected because:

Back

there was no mechanism to explain how the continents drifted.