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Cables Under the Sea
Age 10 · Geography
Open to everyone until Monday, October 26
To keep it, print it while it is open.
Undersea fibre-optic cables lie on the ocean floor and connect continents. They carry almost all the data that travels between far-apart countries.
In the picture
- Cable-laying ship: a vessel with a large spool that feeds cable into the sea
- Seabed cable: a thin dark line resting on the ocean floor
- Cut cable: a bundle of glass strands at the centre, wrapped in metal and plastic layers
- Coastal landing station: a small shore building where the cable arrives
Examples
- A video call to a friend on another continent travels through undersea cables.
- A bank sending money overseas uses cables under the ocean.
Key takeaways
- About 99% of intercontinental data travels through undersea fibre-optic cables.
- These cables link coastal landing stations on different continents.
Quiz: Cables Under the Sea (Age 10)
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What carries almost all the data that travels between far-apart continents?
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What do undersea cables link on different continents?
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Where do undersea fibre-optic cables lie?
The answers, each with its explanation, are in the app. This quiz is free there while the lesson is in the free week.
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