If the chemical sodium is dropped into water it will immediately and violently explode.
67
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
Sound travels about 4 times faster in water than in air.
408
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
One barrel of petroleum holds 42 gallons.
20
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
Pumice is the only rock that floats on water.
14