Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
One 75-watt bulb gives more light than three 25-watt bulbs.
57
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Balsa wood is classified as a hard wood!
41
Iron weighs more after it rusts.
16
The average home creates more pollution than does the average car.
33
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
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3