Artificial Snow

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Across
  1. 3. A small part of a solid substance (eg salt or ice) which has a regular shape
  2. 6. Thing not natural
  3. 8. Ice crystal precipitation
  4. 9. Six-sided polygon
  5. 12. Scientific research facility
  6. 13. A small, flat piece of snow
  7. 14. Effort to find
  8. 15. Jappan region
Down
  1. 1. A measurement of the level of moisture in the air
  2. 2. Person who work in the Science
  3. 3. Action of distributing by class, by category
  4. 4. A measurement of heat
  5. 5. To realise, to do
  6. 7. Find something during a research
  7. 10. What is transmitted as by succession
  8. 11. The Japanese Scientist