Ocean Facts for Kids

Dive into the vast and majestic world of oceans, the lifeblood of our planet Earth! Covering more than 70% of our planet’s surface, oceans are home to a myriad of creatures and ecosystems, and they play a vital role in maintaining the Earth’s climate and atmosphere. From the mysterious depths of the Mariana Trench to the colorful coral reefs teeming with life, oceans are a source of endless wonder and discovery. Perfect for young marine explorers and budding oceanographers, these 30 fun facts about oceans will take you on a journey through the salty waters that cradle a world of mystery, beauty, and adventure. So, let’s set sail and explore the fascinating and diverse world of our planet’s oceans!

30 Ocean Fun Facts for Kids

  1. Oceans cover about 71% of the Earth’s surface.
  2. The Pacific Ocean is the largest and deepest ocean, covering more than 30% of the Earth’s surface.
  3. The Mariana Trench is the deepest part of the world’s oceans, reaching a depth of over 36,000 feet.
  4. Oceans hold about 97% of Earth’s water.
  5. The Great Barrier Reef, off the coast of Australia, is the world’s largest coral reef system.
  6. The ocean’s average depth is about 12,080 feet (3,682 meters).
  7. More than 80% of the ocean is unexplored and unmapped.
  8. The world’s largest ocean current, the Antarctic Circumpolar Current, moves more water than any other current.
  9. Oceans produce over half of the world’s oxygen and absorb the most carbon dioxide.
  10. The longest mountain range in the world is underwater, called the Mid-Ocean Ridge.
  11. Ocean water is salty due to the minerals washed down from rocks on land.
  12. The ocean has different layers, each with its own unique characteristics and marine life.
  13. Bioluminescence is a common feature of deep-sea creatures.
  14. The Blue Whale, the largest animal ever known, lives in the ocean.
  15. There are more historic artifacts under the sea than in all of the world’s museums.
  16. The Bermuda Triangle is a famous area in the Atlantic Ocean where ships and airplanes have mysteriously disappeared.
  17. The ocean’s tides are caused by the gravitational pull of the moon and the sun.
  18. The Arctic Ocean is the smallest and shallowest of the world’s five major oceans.
  19. The ocean is home to the world’s largest living structure – the Great Barrier Reef.
  20. The pressure at the deepest point in the ocean is more than 8 tons per square inch, equivalent to a person trying to hold 50 jumbo jets.
  21. The Pacific Ocean’s name comes from the Latin word ‘pacificus’ which means peaceful.
  22. The ocean’s color can vary from bright blue to dark green depending on the depth, time of day, and weather.
  23. Hydrothermal vents on the ocean floor can reach temperatures of over 700 degrees Fahrenheit.
  24. The Dead Sea is one of the saltiest bodies of water on Earth, making it easy to float.
  25. Kelp forests, found in shallow oceans, can grow up to 18 inches in a day.
  26. The Gulf Stream is a powerful ocean current that influences the climate of the east coast of North America and Western Europe.
  27. Sea levels have been rising due to global warming and the melting of ice at the poles.
  28. The ocean has an important role in many of Earth’s weather systems, including hurricanes and monsoons.
  29. Phytoplankton, tiny plants in the ocean, are a primary food source in the marine food web.
  30. Vast areas of the ocean floor are covered in complete darkness, known as the abyssal zone.