Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
Balsa wood is classified as a hard wood!
41
Most dust particles in your house are made from dead skin!
67
Scientists are now able to grow 'beating' heart tissue in a lab!
162
One third of the electricity produced on earth is used to power electric light bulbs!
75
Most dust particles in your house come from dead skin.
48
Scientists aren't sure what color dinosaurs were.
312
