Oceans of the World
Open Ocean Zones
Ocean and Climate
Temperature Zones
Ocean Life Adaptations
100

What is the Pacific Ocean?

This is the largest ocean on Earth.

100

What is the Sunlight Zone?

This topmost zone has lots of sunlight, allowing plants and most animals to live here.

100

What are ocean currents?

The ocean helps control global temperatures by moving this around the planet.

100

What is the Tropical zone?

This ocean region is warm and found near the equator.

100

Animals in the Sunlight Zone rely on this to produce food.

Sunlight

200

What is the Atlantic Ocean?

This ocean lies mostly between Africa, Europe, and the Americas.

200

What is the Twilight Zone?

This zone has some light but not enough for plants to grow but animals still live here.

200

What is a carbon sink?

The ocean stores carbon dioxide from the air in water and organisms. It acts as this.

200

What is the Temperate zone?

This ocean region has moderate temperatures and is between the tropics and polar areas.

200

Since plants can’t survive here, animals in the Twilight Zone must do this to survive.

Hunt or eat other animals

300

What is the Indian Ocean?

This ocean is located mainly south of Asia and between Africa and Australia.

300

What is the Midnight Zone?

There is no light here and animals often glow and move slowly.

300

What are phytoplankton?

Tiny plants in the ocean called this produce oxygen through photosynthesis.

300

What is the Polar zone?

This ocean region is very cold and located near the poles.

300

Animals in the Midnight Zone often do this to attract prey or mates.

Glow or bioluminesce

400

What is the Southern Ocean?

This ocean surrounds Antarctica.

400

What is the Abyss?

Extremely dark and cold, only a few special animals survive in this zone.

400

What is buffering or stabilizing?

Because water heats and cools slowly, the ocean helps to do this to Earth’s temperatures.

400

What is temperature?

Tropical, temperate, and polar zones are classified based on this ocean property.

400

Only a few animals live in the Abyss because of these extreme conditions. What are these conditions?

Darkness, cold, and high pressure

500

What is the Arctic Ocean?

This is the smallest and coldest ocean, located around the North Pole.

500

What are the Trenches?

The deepest part of the ocean with crushing pressure.

500

What is the circulation of ocean currents?

This is the main way the ocean transports heat and regulates climate globally.

500

What does the temperature difference in this zone affect?

Plants and Animals

500

The Trenches’ high pressure forces animals to have these special traits.

Adaptations for extreme pressure and darkness?

M
e
n
u