A ball of glass will bounce higher than a ball made of rubber.
73
One third of the electricity produced on earth is used to power electric light bulbs!
75
Iron weighs more after it rusts.
68
One cubic foot of gold weighs more than 1,200 pounds!
78
Liquid TIDE laundry detergent glows under a blacklight.
96
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17