Across
- 1. The study of the human past.
- 4. Remains of plants or animals preserved in rocks.
- 7. Early humans mainly worked as
- 8. Period of 1,000 years.
- 10. The practice of growing crops that led to settlement of humans
- 11. The calendar used widely across the world today.
- 12. A line showing events in chronological order.
Down
- 2. Writings carved on stone or metal plates.
- 3. A person who studies remains by digging.
- 5. Anything that gives us information about the past.
- 6. Period of 100 years.
- 9. A very cold period when much of the Earth was covered in ice.