Indoor pollution is 10 times more toxic than outdoor pollution.
62
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
For every gallon of sea water, you get more than a quarter pound of salt.
45
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
Cold water weighs more than hot water.
93
No matter how cold it gets, gasoline will not freeze.
107