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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Most dust particles in your house come from dead skin.
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The average home creates more pollution than does the average car.
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For every gallon of sea water, you get more than a quarter pound of salt.
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One gallon of used motor oil can ruin approximately one million gallons of fresh water!
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Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
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When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
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