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