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Water.Day_town with frozen river
Water is the only substance that expands when it freezes

Frozen water expands 9%, cracking pipes and splitting rocks—but it also makes ice float, keeping fish alive.

More bite-sized facts

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Water.Day_minerals in water
The ocean holds 25 quadrillion tons

That's the estimated weight of all dissolved minerals in Earth's oceans. Every cubic mile contains about 120 million tons of salt.

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Water.Day_woman hand on forehead
2% water loss = major brain fog

Losing just 2% of your body's water content can impair concentration, increase anxiety, and make tasks feel significantly harder.

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Water.Day_Women in Bed waking up
You literally lose a bottle of water sleeping

Your body loses about 0.47 liters of water just through overnight breathing - that's why you wake up naturally thirsty.