The earth is approx. 6,588,000,000,000,000,000 tons.
175
Pumice is the only rock that floats on water.
14
At 15 years old, Jack Andraka invented a method of diagnosing pancreatic cancer, thus helping to save the lives of millions of people around the world. It is 168 times faster, 26,000 times cheaper, 400 times more sensitive, and has a 99% success rate.
15
In zero gravity, a candle's flame is round and blue.
16
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
Each day, up to 150 species of life become extinct.
-23
Most dust particles in your house come from dead skin.
48