Layers of the Earth Test Review

The innermost layer of the Earth.

• Mantle

• Crust

• Core

• Lithosphere

The layer of hot, solid material between Earth's crust and core.

• Crust

• Mantle

• Outer Core

• Inner Core

A boundary where two plates move past each other.

• Divergent Boundary

• Convergent Boundary

• Transform Boundary

• Subduction Zone

The hypothesis that the continents slowly move across Earth's surface.

• Plate Tectonics

• Continental Drift

• Seafloor Spreading

• Pangaea

A deep valley along the ocean floor beneath which oceanic crust slowly sinks toward the mantle.

• Deep Ocean trench

• Continental shelf

• Mid-ocean ridge

• Oceanic plateau

The soft layer of the mantle on which the lithosphere floats.

• Asthenosphere

• Lithosphere

• Mesosphere

• Core

A boundary where two plates move towards each other.

• Divergent Boundary

• Transform Boundary

• Convergent Boundary

• Subduction Zone

The process by which molten material adds new ocean crust to the ocean floor.

• Subduction

• Sea-floor Spreading

• Continental Drift

• Oceanic Trench Formation

A plate boundary where two plates move away from each other.

• Convergent Boundary

• Transform Boundary

• Divergent Boundary

• Subduction Zone

A rigid layer made up of the uppermost part of the mantle and the crust.

• Asthenosphere

• Lithosphere

• Mesosphere

• Hydrosphere