Soc. Studies

4. workers who are especially skilled in crafting items by hand
7. a society that has cities a central government and is ran by official leaders and workers who specialize in various jobs
9. Written or recorded events of people
10. allowed people to move to colder climates
11. A scientist who examine objects to learn about past peoples and cultures
12. supplying land with water from another place using a network of canals
13. more than what is needed
17. The first metal humans used and an ingredient in making bronze
18. the study of earths surface and the processes that shape it
19. A frozen human corpse that was found in the Alps on the Italian Austrian border
20. soil rich in substances that plants need to survive
21. to adapt plants or animals for human use

1. The time before writing
2. people who move from place to place hunting or gathering food
3. A metal made by combining tin and copper
5. a large populated Area that is rich and is a part of a society
6. The second ingredient in bronze that was discovered after copper
8. The most powerful person in a city that rules it
14. One of the first materials used by humans and one of the most important ingredients for early humans to make tools
15. People with no settled home
16. A circular object that turns on an axle