The center of Earth

[image]

Crust

The thin, outer layer of Earth; made of solid rock

[image]

Fossil

The remains or traces of an organism that lived long ago

[image]

Heat & Pressure

Forces that create metamorphic rock over time (millions of years)

[image]

Igneous Rock

Rocks that form from cooled magma or lava

[image]

Lava

Magma (melted rock) that flows out of the ground (ex. volcano) onto Earth's surface

[image]

Limestone

A type of sedimentary rock in which most caves are formed

[image]

Magma

Melted rock below Earth's surface

[image]

Mantle

A layer of molten rock on which the Earth's crust floats; layer between the core and outer crust

[image]

Metamorphic Rock

Rocks that form when another type of rock is squeezed and heated deep inside of the Earth

[image]

Sediment

Bits of rock, soil, sand, shells, and the remains of organisms

[image]

Sedimentary Rocks

Rocks that form when sediments are pressed and cemented together over time

[image]

Tree Growth Ring

A new ring forms every year in a trunk of a tree; shows the age of the tree and weather conditions for each year of growth

[image]