60+ Oceans and Seas Trivia Questions
Test your knowledge of the world’s oceans and seas!
Trivia is an excellent and fun way to test your knowledge of the world. Test your knowledge of the oceans and seas by yourself or challenge your friends to see who knows more! From corals to whales to coastlines, these questions are packed with fascinating facts and insights that will amaze you and expand your understanding of the world.
We have meticulously chosen over 60 questions for you to test your knowledge on as you explore everything the ocean has to offer. The questions range from various levels of difficulty and will really challenge your ocean smarts. Whether you take the quiz competitively or not you are guaranteed to learn a lot about the ocean!
Trivia Questions
Trivia Question: What is the largest coral reef in the world?
Answer: The Great Barrier Reef
Trivia Question: The Indian Ocean touches which three continents?
Answer: Asia, Africa and Australia
Trivia Question: Which sea is known for its ability to keep swimmers afloat and its high salinity?
Answer: Dead Sea
Trivia Question: Which ocean’s name means ‘peaceful’ in Portuguese?
Answer: Pacific Ocean
Trivia Question: Which sea, located between New Zealand and Australia, is known for its unique wildlife?
Answer: Tasman Sea
Trivia Question: Which sea is located off the south coast of South America?
Answer: Caribbean Sea
Trivia Question: Which ocean is known as the youngest of the 5 named oceans, designated in 2000?
Answer: Southern Ocean
Trivia Question: Which narrow strait connects the Mediterranean Sea to the Atlantic Ocean?
Answer: The Strait of Gibraltar
Trivia Question: What is the largest underwater waterfall in the world?
Answer: dThe Denmark Strait
Trivia Question: What is the name given to larger systems of circular ocean currents formed by global wind patterns?
Answer: Ocean gyres
Trivia Question: What is the name of the largest barrier reef in the Western Hemisphere?
Answer: Mesoamerican Barrier Reef System
Trivia Question: What is the deepest point in the Arctic Ocean?
Answer: The Litke Deep
Trivia Question: How is wavelength measured?
Answer: The distance between two wave crests
Trivia Question: What is the period of a wave?
Answer: The time taken for the completion of a wave cycle
Trivia Question: Tides are caused by the gravitational interactions between what?
Answer: The Sun, the Moon, and the Earth
Trivia Question: What are doldrums?
Answer: A low-pressure area around the equator with calm prevailing winds
Trivia Question: What are trade winds?
Answer: Easterly surface winds found in the tropics
Trivia Question: What is the name for strong westerly winds found in the southern hemisphere usually between 40 and 50 degrees?
Answer: The Roaring Forties
Trivia Question: What significant South American landmark is located at the southern tip of the continent and is known for its hazardous conditions?
Answer: Cape Horn
Trivia Question: Which strait at the southern end of South America was first navigated by Ferdinand Magellan during his circumnavigation of the world?
Answer: Magellan Strait
Trivia Question: What is the world’s strongest ocean current known for its role in the Pacific marine ecosystem?
Answer: The Kuroshio Current
Trivia Question: Which underwater mountain range runs through the Atlantic Ocean?
Answer: The Mid-Atlantic Ridge
Trivia Question: Which large ocean current flows from the Gulf of Mexico, along the eastern coastlines of the United States, Newfoundland, and Canada?
Answer: The North Atlantic Current
Trivia Question: Which phenomenon, which occurs in the central and eastern tropical pacific, causes water to periodically warm and impacts weather worldwide?
Answer: El Niño
Trivia Question: Which phenomenon describes the movement of energy and heat through the Earth’s oceans, affecting climates and weather patterns?
Answer: Ocean circulation
Trivia Question: What is the name for the lower layer in the ocean where rapid temperature changes occur with depth, affecting marine life distribution and ocean currents?
Answer: Thermocline
Trivia Question: What category do corals fall into: fungus, plant, or animal?
Answer: Animal – corals are marine invertebrates
Trivia Question: What is the largest ocean in the world?
Answer: Pacific Ocean
Trivia Question: How much of the Earth’s surface is made up of water?
Answer: 70%
Trivia Question: What percentage of world trade (on average) is carried by ships
Answer: 90%
Trivia Question: What is the largest waterfall in the world?
Answer: Victoria Falls
Trivia Question: What is the tallest waterfall in the world? (Yes, it’s different from the largest!)
Answer: Angel Falls
Trivia Question: The Panama Canal connects which two oceans?
Answer: Atlantic Ocean and Pacific Ocean
Trivia Question: Which ocean does the Amazon River run into?
Answer: The Atlantic Ocean
Trivia Question: Which ocean separates Asia and North America?
Answer: Pacific Ocean
Trivia Question: What is the smallest ocean in the world?
Answer: Arctic Ocean
Trivia Question: What is the largest whale in the world?
Answer: The Blue Whale
Trivia Question: How many known species are there currently living in the ocean?
Answer: Over 200,000
Trivia Question: In what decade was the original Jaws movie released?
Answer: 1970s
Trivia Question: What percentage of the ocean is protected?
Answer: ~ 7%
Trivia Question: What is the deepest part of the ocean?
Answer: Challenger Deep
Trivia Question: How much plastic on average is dumped into the ocean each year?
Answer: ~ 8 million tons
Trivia Question: Between which two American states is the Great Pacific Garbage Patch located?
Answer: Hawaii and California
Trivia Question: What is the main food of sea turtles?
Answer: Jelly fish
Trivia Question: Which ocean separates Europe and Africa from North America?
Answer: Atlantic Ocean
Trivia Question: Which sea is almost completely landlocked by European countries, including Italy?
Answer: Adriatic Sea
Trivia Question: What sea borders the most countries/continents?
Answer: Mediterranean Sea
Trivia Question: How many sharks on average are killed by humans each year?
Answer: ~ 100 million
Trivia Question: What is the only sea in the world without any coastlines?
Answer: Sargasso Sea
Trivia Question: What is the smallest sea in the world?
Answer: The Sea of Marmara
Trivia Question: Which sea is bordered by the United Arab Emirates, Oman, and Iran?
Answer: The Persian Gulf
Trivia Question: What is the name of a body of water between two headlands?
Answer: A bay
Trivia Question: Which country in the world has the longest coastline?
Answer: Canada
Trivia Question: What is the saltiest and warmest sea in the world?
Answer: Red Sea
Trivia Question: What is the shallowest sea in the world?
Answer: Sea of Azov
Trivia Question: Approximately how many shipwrecks are found in the ocean?
Answer: 3 million
Trivia Question: Which ocean is St. Helena Island found?
Answer: Atlantic Ocean
Trivia Question: How many oceans does the US border?
Answer: 3
Trivia Question: Which sea (the only one in the world without a coastline) is named after the type of seaweed prevalent in its waters?
Answer: Sargasso Sea
Trivia Question: What is the second largest ocean in the world, named after a mythological titan?
Answer: Atlantic Ocean
Trivia Question: Which sea is famous for its ‘green-blue- waters and is located between Korea and Japan?
Answer: East Sea
Trivia Question: What is the largest bay in the world known for its extreme tide?
Answer: The Bay of Bengal
