An aerial view of a single boat sailing in the sea at daytime

How much do you know about the ocean?

Celebrate World Oceans Day with this quiz

08 June 2024

Ready to test your knowledge of the world’s amazing oceans? To celebrate World Oceans Day 2024, we’ve created a quiz covering everything from the salty surface to the darkest depths.

Jump in and find out how much you know about the watery world around us.

Good luck!

<section data-block="SingleChoice"><h3>What percentage of the Earth's surface is covered by oceans?</h3><ul><li>20%</li><li>50%</li><li>71%</li><li>90%</li></ul></section><section data-block="SingleChoice"><h3>What is the deepest point of the ocean called?</h3><ul><li>The Challenger Deep</li><li>The Abyssal Plain</li><li>The Continental Shelf</li><li>The Coral Reef</li></ul></section><section data-block="SingleChoice"><h3>What percentage of ocean species do scientists estimate are still unknown?</h3><ul><li>10%</li><li>24%</li><li>68%</li><li>91%</li></ul></section><section data-block="SingleChoice"><h3>How salty is the ocean? </h3><p><p>The ocean is salty, but what’s the average ocean salinity? </p></p><ul><li>Around 1.5%</li><li>Around 3.5%</li><li>Around 6.5%</li><li>Around 9.5%</li></ul></section><section data-block="Order"><h3>What are the five biggest animals living in the ocean?</h3><p><p>Arrange these animals in order of size, (biggest to smallest).</p></p><ul><li>Blue whale</li><li>Fin whale</li><li>Whale shark</li><li>Sperm whale</li><li>Giant manta ray</li></ul></section><section data-block="SingleChoice"><h3>The Pacific Ocean is the world’s largest. Which ocean is the smallest? </h3><ul><li>The Arctic Ocean</li><li>The Atlantic Ocean</li><li>The Indian Ocean</li><li>The Southern Ocean</li></ul></section><section data-block="SingleChoice"><h3>Rising water temperatures are a major threat to coral reefs. What is the name of the process by which coral reefs expel their algae (zooxanthellae) and turn white?</h3><ul><li>Coral bleaching</li><li>Starvation</li><li>Predation</li><li>Pollution overload</li></ul></section><section data-block="SingleChoice"><h3>What is the name of the furthest point on Earth from any land, located in the South Pacific? </h3><ul><li>Point Nemo </li><li>Davy Jones’s locker</li><li>The Great Pacific Garbage Patch</li><li>The Mariana Trench</li></ul></section><section data-block="SingleChoice"><h3>Can you identify which marine animal makes this sound?</h3><p><p><em>A series of melancholic moans, groans, whistles, and pops put together in a special order (themes), which the animal repeats over and over. </em></p></p><ul><li>A humpback whale </li><li>A lobster</li><li>A West Indian manatee</li><li>A bottlenose dolphin</li></ul></section>

Topics

climate change, ocean

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