Your brain is 80% water.
525
If the chemical sodium is dropped into water it will immediately and violently explode.
67
One 75-watt bulb gives more light than three 25-watt bulbs.
57
One ragweed plant can release as many as one billion grains of pollen!
51
German chemists made a replica of a trophy the size of one molecule.
68
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38