Earth's Spheres

Front

biosphere

Back

All the living things on Earth

Front

hydrosphere

Back

All Earth’s water, including liquid, vapor, and ice forms

Front

atmosphere

Back

The layer of gases that surrounds Earth

Front

geosphere

Back

All the rocks and minerals that make up Earth

Front

crust

Back

Earth’s outermost layer of solid rock, including both dry land and the ocean floor

Front

mantle

Back

A layer of hot, solid rock directly below the crust.

Front

magma

Back

A molten mixture of rock-forming substances, gases, and water from the mantle.

Front

outer core

Back

A layer of molten, or liquid, metal found directly below Earth’s mantle.

Front

inner core

Back

A dense sphere of solid metal found in the center of Earth.

Front

composition

Back

The parts or elements that make up something.