Geology

Front

What are the layers of the Earth in order from the surface?

Back

Crust, Mantle, Outer Core, Inner Core

Front

What is the thinnest layer of the Earth?

Back

Crust

Front

What is erosion?

Back

The process by which soil and rock are removed from the Earth's surface by wind or water and transported to another location.

Front

What is a fault?

Back

A break in Earth’s crust along which rocks move.

Front

What type of rock is formed by heat and pressure?

Back

Metamorphic rock.

Front

What is the mantle?

Back

The layer of the Earth between the crust and the outer core, composed of semi-solid rock.

Front

What is the outer core?

Back

The liquid layer of the Earth's core, composed mainly of iron and nickel.

Front

What is the inner core?

Back

The solid, innermost layer of the Earth, composed primarily of iron and nickel.

Front

What is sediment?

Back

Small pieces of rock, minerals, and organic material that are transported by wind, water, or ice.

Front

What is the difference between sedimentary rock and metamorphic rock?

Back

Sedimentary rock is formed from the accumulation of sediment, while metamorphic rock is formed from existing rock that has been changed by heat and pressure.