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Water.Day_view on planet earth from space
When gravity nearly disappears

On the ISS, surface tension pulls liquid into the smallest shape. Boiling generates bubbles 30x faster than on Earth.

More bite-sized facts

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Water.Day_image of cells
Your daily water intake feeds 37 trillion cells

Every cell in your body needs water to function, and you're basically a mobile water delivery service.

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Water.Day_trees in Redwood Forest California
Water flows uphill when nobody's watching

In trees, water defies gravity and flows upward through tiny tubes using surface tension and evaporation - no pumps needed.

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Water.Day_woman behind water glass
Water temperature changes taste experience

Water minerals are more detectable at room temperature than when ice-cold, completely changing your tasting experience.