science + earth

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Across
  1. 2. Au
  2. 4. tornados on earth are how many KM an hour
  3. 5. most common tiger
  4. 9. did Egyptians wee in oat seeds to see if they were pregnant?
  5. 10. invented microphone
  6. 12. to make a potato clock you need copper and...
  7. 13. Got throne after Edward the confessor
  8. 14. is sulphur found on mercury?
  9. 16. "living fossil"
  10. 18. southmost cat
  11. 20. Tornados on Neptune can reach how many KM
Down
  1. 1. who brought castle building to Britain
  2. 3. Fireflies emit...
  3. 4. Sudan has how many pyramids
  4. 5. invented metal detector
  5. 6. first queen to give birth under an anaesthetic
  6. 7. earthquake capital of UK
  7. 8. northmost cat
  8. 11. Romans called Scotland...
  9. 13. water
  10. 15. the III hyenas are brown spotted and...
  11. 17. One gas Jupiter is mostly made of
  12. 19. Egypt has how many pyramids