Indoor pollution is 10 times more toxic than outdoor pollution.
62
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13
Iron weighs more after it rusts.
16
Most liquid laundry detergents are alive with living organisms that help to break down stains!
88
Cold water weighs more than hot water.
93
Hot water can freeze faster than cold water.
181