Across
- 2. An early ancestor of humans.
- 6. The group of humans that walked fully upright and controlled fire.
- 8. The group of humans that used simple stone tools.
- 9. What historians call the time before writing.
- 10. A group or society in which people worked together to find find and stay safe
Down
- 1. The era when people made and used stone tools
- 3. A relative who lived in the past.
- 4. The group of humans that every person alive today belongs to.
- 5. People began to express themselves through _____; cave paintings are an example.
- 7. Any handheld object that can be used to help a person complete a task.
