The smell of freshly cut grass is actually a plant distress call.
31
If the chemical sodium is dropped into water it will immediately and violently explode.
67
For every gallon of sea water, you get more than a quarter pound of salt.
45
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
The only letter not appearing on the Periodic Table is the letter "J".
180
4.5 pounds of sunlight strike the Earth each day.
27
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116