Science Grade 9

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Across
  1. 3. - all livings things in an ecosystem
  2. 6. - layer of gases surrounding earth
  3. 10. - smallest unit of an element
  4. 12. - living things of the same kind
  5. 13. - the first stage of lunar cycle
  6. 15. - liquid to gas
  7. 18. - solid to gas
  8. 21. - unit used to measure electric current
  9. 24. - liquid to solid
  10. 25. - solid to liquid
Down
  1. 1. - the average distance between the earth and sun
  2. 2. - variety of species and ecosystems on earth
  3. 4. - material that allows elctric charge to flow through easily
  4. 5. - gas to liquid
  5. 7. - v = i x r
  6. 8. - gas to solid
  7. 9. - the measure of the amount of material in a body
  8. 11. - push or pull
  9. 14. - environment where living and non-living things interact
  10. 16. - all nonliving things in an ecosystem
  11. 17. - huge ball of gases that gives off light
  12. 19. - anything that has mass and volume
  13. 20. - sixth planet from the sun
  14. 22. - the first element on the periodic table
  15. 23. - measured in ohms