PREHISTORY

4. Continent in which hominids first appear
8. Period from 10 thousand to 3 thousand B.C
9. Hominid that used to live in Europe
11. The activity of chasing or searching for wild animals or birds to kill or catch them
13. Period until 10 thousand B.C
15. Prehistoric period in which stone was used to make tools
16. Prehistoric animal, similar to nowadays elephant

1. Age in which people started using copper, tin, bronze, and iron to make tools
2. Important invention of the year 3000 B.C
3. Place where cavemen used to live
5. First humans in history
6. Revolutionary invention of 3200 B.C
7. Civilization located between the Tigris and Euphrates Rivers
10. Is the Practice of growing crops or raising animals
12. Group of people that don't live in an established place
14. Period during which thick ice sheets cover vast areas of land