Your brain is 80% water.
525
The bark of an older redwood tree is fireproof.
65
For every gallon of sea water, you get more than a quarter pound of salt.
45
A ball of glass will bounce higher than a ball made of rubber.
73
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108