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