Fish
Ocean Mammals
Invertebrates
Ocean Reptiles
Random
100

This fish can puff up like a balloon to scare away predators.

What is a pufferfish?

100

This mammal can be as long as two school buses and is the largest animal on Earth.

What is a blue whale?

100

This group of animals has no backbone.

What are invertebrates?

100

This ocean reptile can bite with sharp teeth and lives in saltwater rivers and coasts.

What is a crocodile?

100

This is the largest ocean on Earth.

What is the Pacific Ocean?

200

This orange and white striped fish is famous from the movie Finding Nemo.

What is a clownfish?

200

This large black-and-white marine mammal is also called a “killer whale.”

What is an orca?

200

This eight-legged sea creature can squirt ink when it feels threatened.

What is an octopus?

200

This large reptile has a hard shell and lives in the ocean but comes to shore to lay eggs.

What is a sea turtle?

200

The ocean water tastes salty because it contains this.

What is salt?

300

This large fish is known for its powerful jaws and many sharp teeth.

What is a shark?

300

This ocean mammal has a long spiral tusk that looks like a unicorn horn.

What is a narwhal?

300

This spiny-skinned invertebrate has five arms and can regrow a lost one.

What is a starfish (sea star)?

300

These reptiles often bask on rocks near the shore in tropical areas and can hold their breath for over an hour.

What are sea snakes?

300

This ocean is the smallest and coldest.

What is the Arctic Ocean?

400

These fish swim in large groups called "schools."

What are sardines? (Other answers like "any small fish" can be acceptable too)

400

These playful ocean mammals use echolocation to find fish and are known for jumping out of the water.

What are dolphins?

400

This hard outer shell protects insects, crabs, and lobsters instead of bones.

What is an exoskeleton?

400

This ocean reptile can hold its breath for hours and is the largest living reptile in the world.

What is a saltwater crocodile?

400

This ocean zone, where sunlight no longer reaches, is home to many glowing animals.

What is the deep ocean (midnight zone)?

500

This fish can change color to match its surroundings.

What is a flounder? (Accept "camouflage fish" or "chameleon fish" if you're being lenient)

500

This small, shy relative of the dolphin has a triangular dorsal fin and lives in colder waters.

What is a porpoise?

500

This colorful reef-building animal is actually made of tiny invertebrates called polyps.

What is coral?

500

This type of sea turtle is the largest and can weigh more than 1,000 pounds.

What is a saltwater crocodile?

500

This type of tiny plant drifts in the ocean and produces much of Earth’s oxygen.

What is phytoplankton?