PreChapter: Earth's Spheres and Systems

Front

Atmosphere

Back

The air that surrounds the Earth

Front

Biosphere

Back

The part of the Earth that holds all living and nonliving things

Front

Geosphere

Back

The Earth’s crust and its inner layers

Front

Hydrosphere

Back

All the Earth’s saltwater and freshwater

Front

System

Back

A combination of parts that work together.