Scientists aren't sure what color dinosaurs were.
312
The only letter not appearing on the Periodic Table is the letter "J".
180
A ball of glass will bounce higher than a ball made of rubber.
73
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
Diamonds can be shattered with a hammer.
-104
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9