Science

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Across
  1. 2. – Exploding star
  2. 5. – Season when flowers bloom
  3. 8. – Nerve cell
  4. 10. – Middle value in a dataset
  5. 11. – Flat elevated land
  6. 15. – Disease-causing agent
  7. 17. – Mutual species relationship
  8. 18. - Opposite of proton
  9. 19. - winter’s white blanket
  10. 20. – River mouth sediment deposit
  11. 23. – Narrow water passage between two islands
  12. 24. – Number divisible only by 1 and itself
  13. 25. _ The study of living thing
Down
  1. 1. – Half of diameter
  2. 3. - vast body of saltwater
  3. 4. - Shape with 180° total angles
  4. 6. – Simple sugar
  5. 7. - Earth's natural satellite
  6. 9. – gradual soil loss
  7. 12. – Rocky celestial body
  8. 13. – Natural home of an organism
  9. 14. – fast moving star with tail
  10. 16. – Treeless Arctic land
  11. 21. – Protein catalyst
  12. 22. - science of star and beyond