The Rock Cycle Vocab

Front

Obsidian

Back

A natural glass made when lava cools quickly without forming crystals.

Front

The rock cycle

Back

The process by which rocks change from one type to another due to geological processes.

Front

Pressure

Back

A form of energy that contributes to the transformation of rocks into metamorphic rocks.

Front

Earth's crust

Back

The outermost rocky layer of a rocky planet or moon which is chemically distinct from an underlying mantle.

Front

Outer core

Back

The liquid layer of Earth's core that surrounds the inner core.

Front

Igneous rock

Back

Rock formed from the cooling and solidification of magma or lava.

Front

Sedimentary rock

Back

Rock formed from the accumulation and compaction of mineral and organic particles.

Front

Metamorphic rock

Back

Rock that has been changed from its original form due to heat, pressure, or chemically active fluids.

Front

Magma

Back

Molten rock located beneath the Earth's surface.

Front

Lava

Back

Magma that has reached the Earth's surface.