Balsa wood is classified as a hard wood!
41
Iron weighs more after it rusts.
68
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
The inventor of the Super Soaker squirt gun was a NASA Scientist who also helped develop the Stealth Bomber and the Galileo mission to Jupiter.
7
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
Out of all the senses, smell is most closely linked to memory.
146
Research indicates that plants grow healthier when they are stroked.
173