Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Each day, up to 150 species of life become extinct.
-23
A ball of glass will bounce higher than a ball made of rubber.
73
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
The smell of freshly cut grass is actually a plant distress call.
31
Scientists are now able to grow 'beating' heart tissue in a lab!
162