Iron weighs more after it rusts.
68
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
A ball of glass will bounce higher than a ball made of rubber.
73
Dr.Jonas Salk, the man who came up with the cure for polio, didn’t patent the drug. This made the drug more affordable to the general public, and he lost out an an estimated $7 billion dollars for himself.
41
One third of the electricity produced on earth is used to power electric light bulbs!
75