Across
- 3. dating – the estimation of the age of an object by the amount of radioactive isotopes present in its mass
- 5. – referring to the point at which something comes into existence
- 7. – relating to a time before written history
- 9. – wandering from place to place with no permanent home
Down
- 1. – a scientist who studies genetics and heredity
- 2. – the study of the development, structure, and variation of languages
- 4. – the scientific study of the lives and cultures of ancient people
- 6. – synthetic objects, especially tools, weapons, and ornaments, left behind by ancient civilizations
- 8. – final, decisive; putting an end to doubt and debate
