The earth is approx. 6,588,000,000,000,000,000 tons.
175
One barrel of petroleum holds 42 gallons.
20
Cold water weighs more than hot water.
93
Balsa wood is classified as a hard wood!
41
A ball of glass will bounce higher than a ball made of rubber.
73
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
The bark of an older redwood tree is fireproof.
65
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18