Iron weighs more after it rusts.
16
Pumice is the only rock that floats on water.
14
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
For every gallon of sea water, you get more than a quarter pound of salt.
45
One ragweed plant can release as many as one billion grains of pollen!
51
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
In the 60s, a scientist gave LSD to dolphins in an attempt to teach them English.
17
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7