Across
- 3. Living components of an ecosystem.
- 5. Cycle involving the movement of carbon through Earth's systems.
- 6. Organized body of knowledge obtained by study and experimentation.
- 8. Conversion of atmospheric nitrogen into ammonia.
- 9. Continuous movement of water through Earth.
- 13. The ability to move things, do work, or transfer heat.
- 16. Sedimentary cycle involving phosphate.
- 19. Study of the distribution of species through space and time.
- 21. The protective blanket of gases surrounding Earth.
- 22. Non-living chemical and physical factors.
- 24. The study of interactions among physical, chemical, and biological components of the environment and the solution of environmental problems.
- 26. Process where liquid water changes into water vapor.
- 27. A group of individuals of the same species in a particular geographic area.
- 28. Everything that affects an organism during its lifetime.
- 29. Process that converts carbon dioxide into organic carbon.
Down
- 1. Cycle of sulfur through land, oceans, and atmosphere.
- 2. Natural pathways by which essential elements circulate.
- 4. Circulation of oxygen through nature.
- 7. Where life operates.
- 10. A statement that provides a possible answer to a question and can be tested.
- 11. Comprises all types of water resources.
- 12. A widely accepted explanation of fundamental scientific concepts.
- 13. Excess nutrients causing excessive algal growth.
- 14. Systematic study of the physical and biological factors in the environment.
- 15. Composed of all biotic and abiotic components.
- 17. Water movement through plants and evaporation from leaves.
- 18. Common name for harmful algal blooms.
- 20. Process of removing minerals from saline water.
- 23. A way of gaining information about the world by forming and testing hypotheses.
- 25. The study of energy.