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🌊 Where did the water on Earth come from?

Earth’s water came from two main sources over a very long time.

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🌋 1️⃣ Water from inside the Earth

Long ago, when Earth was very hot:

• Volcanoes erupted often 🌋
• Hot gases came out of the Earth
• One of these gases was water vapor

As Earth cooled:

• Water vapor turned into liquid water
• It fell as rain for millions of years

This rain filled:

• Oceans
• Rivers
• Lakes

👉 This is called volcanic outgassing.

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☄️ 2️⃣ Water from space (asteroids & comets)

Scientists also believe:

• Asteroids and comets hit early Earth
• They carried ice
• When they crashed, the ice melted into water

This added more water to Earth.

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🌧️ The Great Rain (early Earth)

• It rained for thousands to millions of years
• This is sometimes called Earth’s first rain
• Over time, oceans slowly formed

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🔄 Why doesn’t Earth run out of water?

Because of the water cycle:

Evaporation → Clouds → Rain → Rivers → Oceans

Water keeps moving and recycling.

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🧠 Easy way to remember

🌋 Water from Earth
☄️ Water from space
🌧️ Rain made oceans

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🌟 Fun facts for kids

• About 70% of Earth is covered with water
• Earth is called the Blue Planet
• The water you drink today is billions of years old

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🎯 One-line summary

Earth’s water came from volcanoes and space rocks long ago.

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