A ball of glass will bounce higher than a ball made of rubber.
73
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
Research indicates that plants grow healthier when they are stroked.
173
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
Iron weighs more after it rusts.
68
4.5 pounds of sunlight strike the Earth each day.
27