Printable answer key

Ocean Life Quiz

Use this answer key after players complete the quiz or when reviewing a printed worksheet.

  1. 1. Which animal is a mammal that lives in the ocean?

    Correct answer: A. Whale

    Explanation: Whales are mammals that breathe air and live in the ocean.

  2. 2. What do coral reefs provide for many animals?

    Correct answer: A. Habitat

    Explanation: Coral reefs provide habitat, shelter, and food sources for many ocean animals.

  3. 3. Which ocean is the largest?

    Correct answer: A. Pacific Ocean

    Explanation: The Pacific Ocean is the largest ocean on Earth.

  4. 4. What helps fish breathe underwater?

    Correct answer: A. Gills

    Explanation: Gills help fish take oxygen from water.

  5. 5. Which animal has eight arms?

    Correct answer: A. Octopus

    Explanation: An octopus has eight arms.

  6. 6. What is plankton?

    Correct answer: A. Tiny organisms drifting in water

    Explanation: Plankton are tiny organisms that drift in water and support many food chains.

  7. 7. Why is reducing plastic litter important for oceans?

    Correct answer: A. It helps protect marine life

    Explanation: Plastic litter can harm marine life, so reducing it helps protect ocean animals.

  8. 8. Which animal has a hard shell and can live in the sea?

    Correct answer: A. Sea turtle

    Explanation: Sea turtles have hard shells and live in marine environments.

  9. 9. What is a food chain?

    Correct answer: A. A path showing who eats what

    Explanation: A food chain shows how energy moves as organisms eat and are eaten.

  10. 10. Which zone is closest to the ocean surface?

    Correct answer: A. Sunlight zone

    Explanation: The sunlight zone is the upper ocean layer where sunlight can reach.