Test Review: Unit #4: Earth's Layers

Front

What is the process that leads to the formation of new crust at mid-ocean ridges?

Back

Magma rising to the surface.

Front

What happens to temperature as you go deeper into the Earth?

Back

Temperature increases.

Front

Who is the female cartographer known for her work on ocean bottom maps that contributed to Plate Tectonic Theory?

Back

Marie Tharp.

Front

What are the three main layers of the Earth?

Back

Core, mantle, crust.

Front

What is the thinnest, outermost layer of the Earth called?

Back

Crust.

Front

What is the Earth's inner core primarily composed of?

Back

Solid iron and nickel.

Front

What is the mantle, and what is its significance?

Back

The mantle is the layer between the crust and the core, composed of semi-solid rock that flows slowly, driving plate tectonics.

Front

What is plate tectonics?

Back

The theory that explains the movement of the Earth's plates and the processes that occur at their boundaries.

Front

What geological feature is formed at divergent boundaries?

Back

Mid-ocean ridges.

Front

What is the primary cause of earthquakes?

Back

Movement of tectonic plates along faults.