Across
- 2. The best teacher.
- 3. A very cold period of time that can last many thousands of years and ice covers much of the earth.
- 5. People who study old bones and objects to learn about the past.
- 6. People who do not have a permanent home they move in order to find food.
- 9. To tame wild animals for human use.
- 10. Large communities that have written language and a government.
- 11. Very large masses of land there are 7 of these.
- 12. Vast sheets of ice.
Down
- 1. A period of time when early humans made tools and weapons out of stone.
- 4. The average weather of a place over several years.
- 7. The time before people started recording written history.
- 8. Groups of people that live and hunt together in order to have a better chance of surviving.
