Scientists are now able to grow 'beating' heart tissue in a lab!
162
Pumice is the only rock that floats on water.
14
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
In zero gravity, a candle's flame is round and blue.
16
One third of the electricity produced on earth is used to power electric light bulbs!
75
Each day, up to 150 species of life become extinct.
-23
Pure water (H2O) does not conduct electricity on its own.
46