Sciences

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Across
  1. 3. they act on, or combine with, each other
  2. 6. the scientific planning of a machine, road, bridge
  3. 8. the scientific study of plants
  4. 9. the science that deals with the nature of substances and the ways in
Down
  1. 1. the branch of biology that deals with the study of microorganisms
  2. 2. the scientific study of animals
  3. 4. the study of things that occur naturally, such as heat, light, sound
  4. 5. the science dealing with measurement numbers
  5. 7. the scientific study of Earth through its rocks soil