Across
- 4. the first metal used by man
- 7. this age lasted from 4,000BC to 2,000BC. Man discovered copper in this age
- 10. this age lasted from 10,00BC to 8,000BC
- 11. the age when men used stones to make weapons and tools
- 12. formed 4.5 billion years sgo
- 15. this age lasted from 8,000BC to 4,000BC
Down
- 1. this age lasted from 500,000BC to 10,000BC
- 2. age of human history for which no written record is available also called perhistoric age
- 3. old
- 5. man discovered this by chance or good luck
- 6. in the palaeolithic age man lived in this
- 8. stone
- 9. new
- 13. middle
- 14. stone used to make tools