Iron weighs more after it rusts.
16
Termites are being researched as a possible renewable energy source as they can produce up to 2 litres of hydrogen from ingesting a single sheet of paper, making them one of the planet’s most efficient bioreactors.
24
Sound at the right vibration can bore holes through a solid object.
134
Scientists in Germany have developed a candy that doesn't cause cavities.
11
Diamonds can be shattered with a hammer.
-104
Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
304
Most dust particles in your house come from dead skin.
48
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65