Oceanography Trivia Questions
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- 🗂️ Earth Science
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Study of the world's oceans. Play Oceanography trivia solo to sharpen your knowledge, or challenge a friend head-to-head in Trivia Tango — every question comes with an explanation so you learn as you play.
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Sample Oceanography Questions
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This is the largest ocean on Earth, covering more area than all the land combined.
- Pacific Ocean
- Atlantic Ocean
- Indian Ocean
- Arctic Ocean
This percentage represents roughly how much of Earth's surface is covered by oceans.
- 50%
- 60%
- 71%
- 85%
This colorless, odorless compound makes up about 96.5% of seawater.
- Salt
- Water
- Oxygen
- Carbon dioxide
This is the term for the rise and fall of sea levels caused mainly by the gravitational pull of the Moon and Sun.
- Tides
- Waves
- Currents
- Swells
This is the name for the continuous movement of ocean water in a specific direction, like a river within the sea.
- Tide
- Wave
- Current
- Tsunami
This famous current in the Atlantic Ocean carries warm water from the Gulf of Mexico toward Europe.
- California Current
- Gulf Stream
- Humboldt Current
- Labrador Current
These organisms form the base of the ocean food chain and produce much of Earth's oxygen through photosynthesis.
- Sharks
- Whales
- Phytoplankton
- Sea turtles
This underwater ecosystem is often called the rainforest of the sea due to its incredible biodiversity.
- Kelp forest
- Coral reef
- Seagrass meadow
- Mangrove swamp
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