Cold water weighs more than hot water.
93
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42
A ball of glass will bounce higher than a ball made of rubber.
73
Iron weighs more after it rusts.
16
One barrel of petroleum holds 42 gallons.
20
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5