If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
117
The only letter not appearing on the Periodic Table is the letter "J".
180
Pumice is the only rock that floats on water.
14
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
For a high school science fair project, 17-year-old Michio Kaku built a particle accelerator in his parent's garage that was able to generate a magnetic field 20,000 times greater than the Earth's and produce collisions powerful enough to create antimatter.
34
The smell of freshly cut grass is actually a plant distress call.
31
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39