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1️⃣ Salt comes from land

• Rain falls on rocks and soil on land.
• Rain slowly breaks rocks into tiny pieces.
• These tiny pieces contain salt and minerals.

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2️⃣ Rivers carry salt to the ocean

• Rivers flow into seas and oceans.
• Along the way, they carry dissolved salt.
• Rivers keep bringing more and more salt to the ocean.

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3️⃣ Water goes away, salt stays

• The Sun heats ocean water.
• Water evaporates and goes into the air.
• Salt is too heavy to evaporate, so it stays behind.

🧠 Over time, more salt stays → ocean gets salty.

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4️⃣ Oceans are very old

• Oceans are millions of years old.
• Salt has been collecting for a very long time.
• That’s why ocean water is very salty.

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⭐ Fun facts for kids

• Ocean water has enough salt to fill many salt shakers!
• You float better in salty water.
• Not all seas are equally salty.

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🧠 Easy to remember

Rivers bring salt, Sun removes water

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