Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
304
A cubic yard of air weighs about 2 pounds at sea level.
31
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
Pure water (H2O) does not conduct electricity on its own.
46
Cold water weighs more than hot water.
93
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79