Printable answer key
Ocean Life Quiz
Use this answer key after players complete the quiz or when reviewing a printed worksheet.
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. 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. Which ocean is the largest?
Correct answer: A. Pacific Ocean
Explanation: The Pacific Ocean is the largest ocean on Earth.
4. What helps fish breathe underwater?
Correct answer: A. Gills
Explanation: Gills help fish take oxygen from water.
5. Which animal has eight arms?
Correct answer: A. Octopus
Explanation: An octopus has eight arms.
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. 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. 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. 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. 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.