Iron weighs more after it rusts.
68
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
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
Nearly 50% of the world's scientists are assigned to military projects.
71
If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
117
The bark of an older redwood tree is fireproof.
65
The average home creates more pollution than does the average car.
33