The Origin of Life on Earth

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Across
  1. 2. a North American scientist who created an experiment of the primitive atmosphere which produced organic compounds from a mixture of gases
  2. 4. the theory of the origin of life that life began from inanimate objects
  3. 7. a substance which creates a chemical reaction that causes the release of oxygen and loss of electrons
  4. 8. an object which isn't living
  5. 10. a theory of the origin of life which claims that organic molecules arrived from space and are the building blocks of life on Earth
  6. 11. a French chemist who discovered that microorganisms were not created from spontaneous generation
  7. 12. decaying, decomposing
  8. 13. the process through which life appears from non-living matter
  9. 15. existed at the beginning of time
  10. 16. one of the possible places in which living things could have first appeared
Down
  1. 1. an Italian doctor who believed in spontaneous generation
  2. 3. a Russian biochemist who developed a theory of abiogenesis which is the basis of the hypothesis accepted by most scientists today
  3. 5. a Swedish scientist who believed that life came to Earth from meteors from outer space
  4. 6. a Flemish doctor who believed in spontaneous generation
  5. 9. a baby insect
  6. 14. structures which insulated organic molecules in Oparin's abiogenic theory