Sound travels fifteen times faster through steel than through air.
134
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
If the chemical sodium is dropped into water it will immediately and violently explode.
67
The smell of freshly cut grass is actually a plant distress call.
31
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
Hot water can freeze faster than cold water.
181
If you blowtorch Pepto-Bismol, you would get a hunk of metal.
114