Iron weighs more after it rusts.
16
The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
One third of the electricity produced on earth is used to power electric light bulbs!
75
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Hot water can freeze faster than cold water.
181
Most dust particles in your house are made from dead skin!
67