Iron weighs more after it rusts.
16
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
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
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
Each day is longer than the previous on by 0.00000002 seconds which is 13 seconds each century!
116
The idea of left brain (logical) and right brain (creative) has no basis in neuroscience and is in fact a myth.
16
Aluminum used to be more valuable than gold!
84
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118