A cubic yard of air weighs about 2 pounds at sea level.
31
The bark of an older redwood tree is fireproof.
65
One ragweed plant can release as many as one billion grains of pollen!
51
Scientists are now able to grow 'beating' heart tissue in a lab!
162
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
The force of a suction cup is calculated using F=AP.
15
Most liquid laundry detergents are alive with living organisms that help to break down stains!
88
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42