Across
- 1. Standing with your back straight
- 5. A group of people born at the same time
- 9. Facts that you learn
- 10. Preserved remains of a prehistoric plant or animal
Down
- 2. The period of time before humans kept written records
- 3. More than one thousand
- 4. People who research
- 6. Something from a long time ago
- 7. People who study science
- 8. Another word for "person"