Across
- 4. small edible plants
- 5. specialized jobs
- 8. later stone age where that don't use sticks with rocks anymore
- 9. a pyramid of people most powerful at the top worst at the bottom
Down
- 1. growing expanding without to many obstacle
- 2. where animals burrow or fly to warmth
- 3. stay in one location
- 6. the science of farming
- 7. something left over