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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Airports that are at higher altitudes require a longer airstrip due to lower air density.
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Liquid TIDE laundry detergent glows under a blacklight.
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Sound travels fifteen times faster through steel than through air.
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Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
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If the chemical sodium is dropped into water it will immediately and violently explode.
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Pumice is the only rock that floats on water.
14
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
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