Indoor pollution is 10 times more toxic than outdoor pollution.
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Balsa wood is classified as a hard wood!
41
Most liquid laundry detergents are alive with living organisms that help to break down stains!
88
Sound travels about 4 times faster in water than in air.
408
No matter how cold it gets, gasoline will not freeze.
107
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
Aluminum used to be more valuable than gold!
84
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!
21