The ocean is a large body of salt water that covers most of the
Earth's surface. It contains almost all of the Earth's water and
plays a vital role in the planet's climate and weather.
What the ocean is made of
The ocean is made of salt water.
It contains about 97% of the Earth's water.
The ocean's average depth is 12,100 feet (3,688 meters).
What the ocean does
The ocean stores heat from the sun and transfers it to the
atmosphere.
The ocean's water evaporates and condenses into clouds,
which release water as rain.
The ocean's currents carry heat around the planet.
How the ocean is divided
The ocean is divided into five main areas: the Pacific,
Atlantic, Indian, Arctic, and Southern Oceans.
These oceans are connected and water flows freely between
them.
Smaller parts of the oceans are called seas, gulfs, and bays.
How the ocean is changing
Climate change is causing sea levels to rise.
This is leading to more extreme events like storm surges,
flooding, erosion, and landslides.