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Water.Day_cumulus clouds over a field
Clouds weigh more than 100 elephants floating above you

A single cumulus cloud weighs about 500 tonnes - imagine all that weight just chilling in the sky above you.

More bite-sized facts

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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.

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Water.Day_water droplets on car window
Water can be liquid at -40°C without freezing

"Supercooled" water stays liquid way below freezing until you tap it—then it instantly turns to ice before your eyes.

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Water.Day_man showing tears
Your tears have the same salt level as the ocean

Human tears contain about 0.9% salt - nearly identical to seawater, like your body remembers where life began.