Across
- 3. investigation
- 7. Issac Newton
- 8. Theory
- 11. the smallest structural and functional unit of an organism
- 12. Charles Darwin
Down
- 1. facts found from doing an experiment
- 2. microorganism, especially one which causes disease
- 4. the thing that powers other objects
- 5. solersystem
- 6. a shot taken when a person has an illness
- 9. the bones that protect the brain
- 10. the things that make everything