How Well Do You Know Sea Animals? 25 Ocean Questions for Kids
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How Well Do You Know Sea Animals? 25 Ocean Questions for Kids
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About this quiz
Sea animals quiz for kids: 25 questions about whales, sharks, octopuses and the strangest creatures of the deep ocean. 🐙
Glowing fishing rods, dads who give birth and a shark that may live for centuries: dive in and see how much you really know about life under the waves. Perfect for curious kids, classrooms and family quiz time.
❓ IN THIS QUIZ
- Which sea animal has no brain at all?
- Which sea dad gives birth to the babies?
- Which tiny animal makes one of the loudest sounds in the sea?
- Which animal can live the longest?
💬 How many did you get right? Tell us your score in the comments. What's your favorite sea creature?
How to play
- Read the question and look at the pictures.
- Pick your answer before the timer runs out (or switch the timer off).
- See if you were right and read the fun fact.
Answers and fun facts (spoilers!)
- Let's dive in! Which sea animal has no brain at all?
Jellyfish
Jellyfish have no true brain and no bones. A simple net of nerves runs through their body! - Which animal's dads give birth to the babies?
Seahorse
Seahorse dads carry the eggs in a pouch and give birth to the tiny babies! - Which whale has a long tusk, like a unicorn?
Narwhal
A narwhal's 'horn' is really a giant tooth that can grow up to 3 m (10 ft) long! - Which is the biggest fish in the world?
Whale Shark
Whale sharks are the biggest fish, up to about 18 m (62 ft) long. Blue whales are mammals, not fish! - Which sea animal has eight arms?
Octopus
Octopuses have eight arms covered in suckers that grip and feel everything they touch! - Which fish can puff up into a spiky ball?
Pufferfish
Pufferfish gulp water to puff up into a spiky ball when danger is near! - Where does a clownfish hide?
Sea Anemone
Clownfish live among sea anemones. A special slime protects them from the stinging tentacles! - Which of these is a mammal?
Seal
Seals breathe air and feed their babies milk, so they're mammals, just like us! - Which sea animal can regrow a lost arm?
Starfish
Starfish can regrow lost arms, and some can grow a whole new body from one arm! - Which animal lives in empty shells and moves when it grows?
Hermit Crab
Hermit crabs live in empty shells and swap to a bigger one as they grow! - Which animal makes pearls?
Oyster
Pearls grow inside oysters when they coat a tiny bit of grit with shiny layers! - Which of these is NOT a fish?
Starfish
Starfish aren't fish at all, scientists call them sea stars. Seahorses really are fish! - Which fish has a skeleton made of cartilage instead of bone?
Shark
Shark skeletons are made of cartilage, the same bendy stuff as your ears and nose! - Which animal squirts ink to escape?
Squid
Squid squirt a cloud of ink to confuse predators and make their getaway! - Which is the biggest turtle in the world?
Leatherback
Leatherbacks are the biggest turtles alive, up to 2.7 m (9 ft) long and around 500 kg! - Which tiny animal makes one of the loudest sounds in the sea?
Pistol Shrimp
Pistol shrimp snap their claw so fast it makes a popping bubble, one of the loudest sounds in the sea! - Which deep-sea fish has a glowing lure on its head?
Anglerfish
Deep-sea anglerfish wave a glowing lure in the dark to attract their prey! - Which sea animal uses rocks to crack open shells?
Sea Otter
Sea otters use rocks to crack open shells, and their fur is the thickest of any animal! - Orcas are actually the biggest kind of what?
Dolphin
Orcas, also called killer whales, are the biggest members of the dolphin family! - Which crab has the longest legs?
Spider Crab
Japanese spider crabs can measure 3.7 m (12 ft) from claw to claw, the biggest leg span of any arthropod! - Which animal has the biggest eyes of any animal?
Colossal Squid
Colossal squid have the biggest eyes of any animal, about 27 to 30 cm (11 to 12 in) across! - Which mammal dives the deepest?
Beaked Whale
Cuvier's beaked whales hold the record: a dive nearly 3,000 m (9,800 ft) deep! - Which fish has been seen deepest in the ocean?
Snailfish
A snailfish was filmed 8,336 m (27,349 ft) deep, the deepest fish ever seen! - Which animal uses its tusks to pull itself onto the ice?
Walrus
Walruses dig their tusks into the ice to help haul their heavy bodies out of the water! - Last one! Which animal can live the longest?
Greenland Shark
Greenland sharks may live 272 to 510 years, the longest life of any animal with a backbone!