Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
Hot water can freeze faster than cold water.
181
Out of all the senses, smell is most closely linked to memory.
146
The sun is 330,330 times larger than the earth.
75
If the chemical sodium is dropped into water it will immediately and violently explode.
67
The average home creates more pollution than does the average car.
33
No matter how cold it gets, gasoline will not freeze.
107
Billions of neutrinos pass unnoticed through your body every second.
6