Cold water weighs more than hot water.
93
Most dust particles in your house come from dead skin.
48
The smell of freshly cut grass is actually a plant distress call.
31
Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
One third of the electricity produced on earth is used to power electric light bulbs!
75
The force of a suction cup is calculated using F=AP.
15
The sun is 330,330 times larger than the earth.
75