COSMOS by Carl Sagan

12345678910
Across
  1. 5. Accidently bred by people in ancient Japan when fishers would throw back crabs with face-like shell patterns
  2. 6. The famous library of ____ held much of the ancient worlds knowledge until it's destruction
  3. 8. Humans and ____ evolved from a common ancestor
  4. 10. How many states of neutrinos are visible through a microscope?
Down
  1. 1. The scientist that proposed and proved evolution
  2. 2. The process in which organisms are chosen to change the traits of a species
  3. 3. Measured originally about 2,200 years ago to determine time and time-zones
  4. 4. ____can form in many different shapes and formations
  5. 7. Earth formed(long/not long)before life developed
  6. 9. Natural selection leads to ____