At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38
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
For every gallon of sea water, you get more than a quarter pound of salt.
45
Hot water can freeze faster than cold water.
181
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
One 75-watt bulb gives more light than three 25-watt bulbs.
57