Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
The average home creates more pollution than does the average car.
33
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
304
Sound travels about 4 times faster in water than in air.
408
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
Diamonds can be shattered with a hammer.
-104
Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21