The earth is approx. 6,588,000,000,000,000,000 tons.
175
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38
In zero gravity, a candle's flame is round and blue.
16
A cesium atom in an atomic clock beats over nine billion times a second.
43
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
Sound travels fifteen times faster through steel than through air.
134