Ocean Geography

Marine Mammals

Coral Reef Ecology
Under the Sea

100

This ocean is the smallest and shallowest of the Earth's oceanic divisions

What is the Arctic Ocean?


100

This marine mammal is known for its unique spiral tusk and is sometimes called the "unicorn of the sea

What is the narwhal?


100

This term describes a marine area consisting of hard, stony structures built by living organisms

What is a coral reef?


100

This spiny echinoderm is often brightly colored and can regenerate its arms

What is a sea star?


200

Known for its "Ring of Fire," this ocean is the largest and deepest of Earth's oceanic divisions

What is the Pacific Ocean?


200

Also known as "sea cows," these gentle marine animals are closely related to elephants

What are dugongs?

200

This small, soft-bodied organism lives in a large colony and is the primary builder of coral reefs

What is a coral polyp?


200

This type of fish has a symbiotic relationship with anemones and is popular in home aquariums

What is the clownfish?


300

Bordering the eastern coast of Africa, this ocean is the warmest of the Earth's oceans

What is the Indian Ocean?


300

Famous for its massive breach, this marine mammal's name is also a synonym for a large-scale migration of people to a more favorable habitat.

What is the humpback whale?


300

This marine mammal, with a name meaning "siren of the sea," has been known to graze on seagrasses around coral reefs

What is the dugong?


300

Named for its ornate, spiral-shaped tube, this marine creature resembles a festive holiday decoration

What is the Christmas tree worm?

400

This ocean's name means "peaceful," but its weather can be anything but

What is the Pacific Ocean?


400

This largest species of aquatic mammal is known for its complex songs and long migrations.

What is the humpback whale?


400

This largest living structure on Earth can even be seen from space and is located off the coast of Australia

What is the Great Barrier Reef?


400

Famous for its ability to change colors, this cephalopod is also known as the chameleon of the sea.

What is the squid?


500

The Arctic is classified as this type of ocean, partly enclosed by Europe, Asia, and North America.

What is a marginal sea?

500

Known for its high intelligence, this marine mammal is a star performer in many aquarium shows and is also active in naval mine detection

What is the dolphin?


500

This term refers to the process where coral loses its vibrant color due to environmental stress, often leading to coral death if conditions do not improve

What is coral bleaching?


500

This large marine predator is characterized by its dorsal fin and has a reputation that's scarier than its actual behavior

What is the shark?


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