Across
- 4. Water turns to gas without reaching boiling point
- 5. tool that scientists use to identify unknown organisms
- 6. method for acquiring knowledge through experiments
- 10. consume
- 12. Being sustainable
- 14. Population remaining constant
- 15. a natural resource that replenishes itself
Down
- 1. Rain, snow, sleet
- 2. How nitrogen goes around
- 3. going global
- 7. groups
- 8. Breaking down
- 9. Makers
- 11. how water goes around the planet
- 13. section of soil that has distinct horizontal layers