by Lucy

A low-lying area where water may accumulate

A relatively shallow area of the ocean

The rock that forms Earth’s crust

To come together

A carbonate mineral with chemical formula

A volcanic landform created when part of the land collapses

Patterns in rock resulting from sand dunes 

The surface that is visible when something is cut through

An era when mammals exist

The rigid outer layer of Earth

A rock that can be burned to release stored energy

Arrangement of atoms and molecules with a specific shape

Process where sediment grains become squashed closer 

The settling of sediments

The theory that the continents had once been one big continent that broke up

Formed when magma pushes up from below Earth’s surface

A volcano that is not presently erupting, but it can erupt in the future

A sudden movement of plates within Earth’s crust

The carrying away of weathered earth materials by water, wind or ice

A crack in Earth’s crust where movement can occur

A large amount of water flowing over land that is usually dry

Any remains of animal or plant life preserved in Earth’s crust

A hot spring that traps steam in underground spaces and builds pressure

A giant body of ice that slowly flows

A rock shaped like a mushroom that forms when weak rocks leave stronger rocks behind

A rock that forms when melted rock hardens

Molten rock on the surface of Earth

Molten rock under the surface of Earth

The layer of Earth below the crust

A rock that has changed from another rock

A theory that Earth’s outer layers are made of moving plates

Material that is deposited by water, wind, or ice

A rock that forms when layers of sediments get stuck together

When one tectonic plate slides under another

The process by which larger rocks break apart over time to form smaller rocks