Across
- 3. the natural science that studies matter
- 6. the science that deals with the earth's physical structure and substance
- 7. machinery
- 8. the scientific discipline involved with elements and compounds
Down
- 1. Science, the sciences concerned with the study of inanimate natural objects
- 2. a natural science that studies celestial objects and phenomena
- 4. this class
- 5. is the natural science that studies life and living organisms