Cold water weighs more than hot water.
93
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
Balsa wood is classified as a hard wood!
41
German chemists made a replica of a trophy the size of one molecule.
68
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
Hot water can freeze faster than cold water.
181
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39