Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
If the chemical sodium is dropped into water it will immediately and violently explode.
67
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Balsa wood is classified as a hard wood!
41
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
The force of a suction cup is calculated using F=AP.
15
A 'jiffy' is an actual unit of time for 1/100th of a second!
66