Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
If you blowtorch Pepto-Bismol, you would get a hunk of metal.
114
The smell of freshly cut grass is actually a plant distress call.
31
The sun is 330,330 times larger than the earth.
75
Iron weighs more after it rusts.
68
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5