Science

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Across
  1. 3. v. To turn around; to take turns in sequence
  2. 5. n. A part in relation to the whole
  3. 6. v. To organize or arrange in succession
  4. 8. n. Precision; exactness
  5. 9. v. To lie over part of something; to have elements in common
  6. 12. adv. At a very fast rate
  7. 17. v. To come from, usually through a long, slow process
  8. 19. adj. Immeasurably small
  9. 22. n. A central or essential part around which other parts are gathered; a core
  10. 23. n. The point of origin or creation
  11. 24. v. To make use of; to carry out
  12. 25. v. To set off or initiate
  13. 28. adv. In a whole or complete manner
Down
  1. 1. v. To be slowly weakened by chemical reactions
  2. 2. adj. Chosen simply by whim or chance, not for any specific reason
  3. 4. n. Setting something into position for use
  4. 7. n. The process of burning
  5. 10. adv. Practically; in a way that can work
  6. 11. n. The act of keeping something in good condition
  7. 12. adv. Quickly and efficiently
  8. 13. v. To spread or flow throughout; to pass through or penetrate
  9. 14. v. To transport from one place to another; to transmit or make known
  10. 15. adj. Next to
  11. 16. n. One part of a system or whole
  12. 18. v. To change; to get accustomed to something
  13. 19. adj. Ahead of the times; novel
  14. 20. v. To pass slowly for a long time, as a liquid or gas might
  15. 21. adv. Separately; distinctly
  16. 26. v. To empty or hollow out
  17. 27. n. The cost per unit of a good or service; the motion or change that happens in a certain time.
  18. 29. v. To keep or hold