Pumice is the only rock that floats on water.
14
The force of a suction cup is calculated using F=AP.
15
The earth is approx. 6,588,000,000,000,000,000 tons.
175
Termites are being researched as a possible renewable energy source as they can produce up to 2 litres of hydrogen from ingesting a single sheet of paper, making them one of the planet’s most efficient bioreactors.
24
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
Scientists aren't sure what color dinosaurs were.
312
A cubic yard of air weighs about 2 pounds at sea level.
31
One third of the electricity produced on earth is used to power electric light bulbs!
75