Across
- 5. Force that slows motion when surfaces rub together
- 6. Community of living and nonliving things interacting together
- 8. Change or addition to a legal document, especially the Constitution
- 9. A story or account of events
- 10. Related to heat
- 14. Speed given in a direction
- 15. Using objects or images to represent ideas in literature
Down
- 1. Method of supplying water to farmland
- 2. Process plants use to make food using sunlight
- 3. Historical period known for renewed interest in art and learning
- 4. Advanced society with cities, culture, and government
- 7. Government system in which people vote for their leaders
- 11. Mathematical statement showing two things are equal
- 12. Height above sea level
- 13. Testable scientific prediction