Scientists aren't sure what color dinosaurs were.
312
The bark of an older redwood tree is fireproof.
65
Your brain is 80% water.
525
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
For every gallon of sea water, you get more than a quarter pound of salt.
45
The only letter not appearing on the Periodic Table is the letter "J".
180
The force of a suction cup is calculated using F=AP.
15