science vocab

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Across
  1. 6. branch of science
  2. 8. natural science that studies matter
  3. 9. tranche of medicine
  4. 10. repeated experiments
  5. 11. doing work
  6. 14. prehistoric organism
  7. 15. reference or analysis
Down
  1. 1. supposition or proposed
  2. 2. between force of attraction
  3. 3. individual animal,plant or single-celled life form.
  4. 4. anything that has mass
  5. 5. substance as studies
  6. 7. elements of groups
  7. 12. answer to remark or accusation
  8. 13. deals with living organisms