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Nature
Water is the only natural substance that commonly exists as a solid, liquid, and gas on Earth.
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Science
There are more atoms in a glass of water than glasses of water in all Earth's oceans.
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Science
A glass of water always contains at least one molecule that has passed through a dinosaur.
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Science
There are more atoms in a glass of water than glasses of water in Earth's oceans.
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Science
Hot water can freeze faster than cold water under certain conditions — the Mpemba effect.
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Science
Supercooled water can remain liquid below 0°C and instantly freeze when disturbed.
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Science
Pure water does not conduct electricity — it's the dissolved minerals that make water conductive.
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Science
Hot water can freeze faster than cold water under certain conditions — this is called the Mpemba effect.
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Nature
Water is the only common substance on Earth that naturally exists in all three states — solid, liquid, and gas — at everyday temperatures.
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Science
Cesium is so reactive it explodes on contact with water — and reacts violently even with ice.
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Space
Water has been found on the Moon, locked as ice in permanently shadowed craters near the poles.
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Science
There are more atoms in a glass of water than there are glasses of water in all of Earth's oceans.
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Science
Water expands when frozen not only because of hydrogen bonds but because the crystal structure of ice is less dense than liquid water.
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Science
The boiling point of water decreases at high altitudes due to lower atmospheric pressure — at the top of Everest, water boils at 70°C.
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Science
The chemical formula for water, H₂O, means each molecule has exactly two hydrogen atoms and one oxygen atom.
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Science