Iron weighs more after it rusts.
68
Sound travels fifteen times faster through steel than through air.
134
Nuclear power prevented an average of over 1.8 million deaths between 1971-2009 as a result of lower air pollution from reduced coal usage according to NASA.
5
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
The smell of freshly cut grass is actually a plant distress call.
31
According to scientists, the color of the cup that we're drinking from can alter our perception of the actual taste of the drink.
12
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42
Pumice is the only rock that floats on water.
14