Layers of the Earth

Crust

the thin and solid outermost layer of the Earth above the mantle

density

A property of matter representing the objects mass/volume

Which letter represents the mantle?

B

Continental crust

Crust about 30km to 100km thick that makes up the continents

Oceanic Crust

Crust about 5km to 7km thick that forms the ocean floors- thinner or more dense than the continental crust

Which letter in the diagram identifies the layer that is composed of moving continental and oceanic plates?

Layer A - The Crust

The layers of Earth can be classified by thickness, state, and composition. Which of Earth's layers is best described as being of medium density, being in a molten, liquid state?

Outer Core

How thick is the Earth's crust?

between 3 and 43 miles

inner core

densest and hottest layer of the Earth made of solid iron and nickel

outer core

is the liquid layer of the Earth's core made of the metals iron and nickel- lies beneath the mantle and surrounds the inner core

core

the central part of the Earth below the mantle

Mantle

the layer of rock between the Earth's crust and core