During photosynthesis, plants emit light humans can’t see, but NASA can see that light from space - and they've even made maps of it!
21
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
If the chemical sodium is dropped into water it will immediately and violently explode.
67
Diamonds can be shattered with a hammer.
-104
Pure water (H2O) does not conduct electricity on its own.
46
In zero gravity, a candle's flame is round and blue.
16
One barrel of petroleum holds 42 gallons.
20
