If the chemical sodium is dropped into water it will immediately and violently explode.
67
Cold water weighs more than hot water.
93
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Research indicates that plants grow healthier when they are stroked.
173
The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199