Cold water weighs more than hot water.
93
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
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11