Sound travels about 4 times faster in water than in air.
408
If the chemical sodium is dropped into water it will immediately and violently explode.
67
Columbia University has developed an artificial tree that passively soaks up carbon dioxide from the air using "leaves" that are 1,000 times more efficient than true leaves that use photosynthesis.
15
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
According to scientists, the color of the cup that we're drinking from can alter our perception of the actual taste of the drink.
12
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
Balsa wood is classified as a hard wood!
41