Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
According to scientists, the color of the cup that we're drinking from can alter our perception of the actual taste of the drink.
12
A ball of glass will bounce higher than a ball made of rubber.
73
A cubic yard of air weighs about 2 pounds at sea level.
31
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89