Most dust particles in your house come from dead skin.
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Cold water weighs more than hot water.
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Sound travels about 4 times faster in water than in air.
408
If the chemical sodium is dropped into water it will immediately and violently explode.
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Termites are being researched as a possible renewable energy source as they can produce up to 2 litres of hydrogen from ingesting a single sheet of paper, making them one of the planet’s most efficient bioreactors.
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Columbia University has developed an artificial tree that passively soaks up carbon dioxide from the air using "leaves" that are 1,000 times more efficient than true leaves that use photosynthesis.
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Pumice is the only rock that floats on water.
14
During photosynthesis, plants emit light humans can’t see, but NASA can see that light from space - and they've even made maps of it!
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