Across
- 2. a rod placed at the centre of a wheel that helps it rotate.
- 3. age of discoveries and inventions.
- 4. people who moved from place to place.
- 9. means‘old’ in Greek.
Down
- 1. taming of animals.
- 2. an occupation that made early humans settle down in one place.
- 5. a substance made by combining two or more metals.
- 6. first metal used by early humans.
- 7. discovery of this helped early humans not eat raw meat.
- 8. tool that were used as the tip of spears and arrows.