Across
- 8. Energy created from ocean tides
- 9. Energy produced by movement of ocean surface water
- 11. Protecting and managing natural resources carefully
- 14. A community of living things interacting with their environment
- 15. Organic material from plants and animals used as energy
- 16. Electricity generated using moving water
- 20. Moving air used to produce renewable energy
- 21. Upper layer of earth where plants grow and nutrients are found
- 23. Using resources in a way that preserves them for the future
- 24. Energy produced from heat inside the Earth
- 25. Reusing materials instead of throwing them away
Down
- 1. Variety of living organisms in an area
- 2. Naturally occurring solid substances found in the Earth
- 3. Materials or substances that occur naturally in the environment
- 4. Natural world around us, including air, water, and land
- 5. Fossil fuel used for heating and electricity
- 6. Amount of greenhouse gases produced by human activities
- 7. Energy that comes from the sun and can be used to generate solar power
- 10. Mixture of gases that living things need to survive
- 12. A fossil fuel formed from ancient plant remains
- 13. Large area covered chiefly with trees and wildlife
- 17. Resources that can be naturally replaced over time
- 18. Liquid fossil fuel used for energy and transportation
- 19. Non-renewable energy sources like coal, oil, and gas
- 22. A natural resource essential for all living things and part of the water cycle