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Oceans & Climate

Understand the connection between the ocean and climate: the ocean absorbs heat and carbon dioxide, drives weather patterns through evaporation, and ocean currents distribute warmth around the planet — making the ocean Earth's climate engine

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What a learner can do afterwards

  • Explain that the ocean absorbs a large amount of the Sun's heat and atmospheric carbon dioxide
  • Describe the ocean's role in the water cycle through evaporation
  • Explain how ocean currents distribute warmth and affect weather patterns in distant places

The lesson

The ocean does more than hold fish and waves. It also helps control the temperature and weather for the whole planet. Scientists call the ocean Earth's climate engine because it absorbs heat, helps make rain, and moves warmth around the globe.

Ocean90Air & Land10
Most of the extra heat trapped near Earth gets soaked up by the ocean. Only a small share stays in the air and on land.
Sun heatEvaporateCloudsRain
The sun's heat turns ocean water into vapor. That is evaporation, the first step of the water cycle.
Try it together

A warm current called the Gulf Stream carries warm water from near the equator toward Europe. As it flows, it releases heat into the air above it. That is one reason winters in parts of Western Europe stay milder than winters in other places just as far north.

Good to know

Currents do not just move water. They move heat too. A change in ocean currents can change the weather in places thousands of miles away.

The ocean stores heat and carbon dioxide, powers the water cycle through evaporation, and carries warmth around the planet through currents. That is why it is Earth's climate engine.

Watch it

Where it sits

Where this leads

Jobs that lean on this skill. Follow one to see everything it is built on.

Then practise

8 questions wait behind this lesson, each with its answer explained. Every answer feeds the sky: stars light as they are learned, and dim when it is time to come back.

Oceans & Climate · Science, ages 9 to 11 · LightMySky