Sort 40

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Across
  1. 1. a 5-sided shape
  2. 7. a stanza of 8 lines
  3. 9. 10 years
  4. 12. the perfect example
  5. 13. the 200th anniversary
  6. 14. 5 children in one birth
  7. 15. a group of four people
  8. 16. 4 children in one birth
  9. 17. another term for Celsius
  10. 18. 100 years
Down
  1. 1. a rate out of 100
  2. 2. increase by 4 times the original
  3. 3. a group of 8 people
  4. 4. a group of five people
  5. 5. competition with 10 events
  6. 6. an animal with 4 legs
  7. 8. an 8-sided shape
  8. 10. a 100th of a metre
  9. 11. to wipe out every tenth person
  10. 12. one 4th of something