Front

A break in Earth's crust along which rocks move is called?

Back

Fault

Front

The term that means an igneous rock layer formed when lava flows onto Earth's surface and hardens is?

Back

Extrusion

Front

The igneous rock layer formed when magma hardens beneath Earth's surface is called?

Back

Intrusion

Front

What does trace fossil mean?

Back

A type of fossil that provides evidence of the activities of ancient organisms.

Front

What is the process of rock formation from magma called?

Back

Igneous rock formation.

Front

What is the difference between magma and lava?

Back

Magma is molten rock beneath the Earth's surface; lava is magma that has reached the surface.

Front

What is sedimentary rock?

Back

Rock formed from the accumulation of sediment.

Front

What is the rock cycle?

Back

The continuous process of rock formation and transformation.

Front

What is metamorphic rock?

Back

Rock that has been changed by heat and pressure.

Front

What is a fossil?

Back

The preserved remains or traces of ancient organisms.