Balsa wood is classified as a hard wood!
41
Sound travels about 4 times faster in water than in air.
408
The smell of freshly cut grass is actually a plant distress call.
31
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
Each day, up to 150 species of life become extinct.
-23
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38