Across
- 10. A place for living or protection
- 11. A group of sentences about one idea
- 12. Resources that take millions of years to form
- 13. The condition of living organisms
- 14. Using less of something
- 16. The top layer of Earth where plants grow
- 18. Wearing away of soil
- 22. Created or built by people
- 24. A benefit or positive point
- 26. Giving reasons or details
- 29. Materials people use from the Earth
- 31. Why something is needed or valuable
- 32. Showing how two things are not the same
- 36. Protecting and saving resources
- 38. Everything not made by humans
- 39. Relying on something for needs
- 40. How something is created over time
Down
- 1. Turning waste into new materials
- 2. Harm done to the environment
- 3. The planet we live on
- 4. Running out of resources
- 5. Using something again
- 6. Using too much of a resource
- 7. Resources that can be replaced naturally
- 8. Can be replaced naturally over time
- 9. Comes from nature, not made by humans
- 15. Specific instances used to explain
- 17. Show similarities and differences
- 19. Using resources so they last long
- 20. Gas needed for breathing
- 21. How humans rely on natural resources
- 23. Power used to do work
- 25. Essential liquid for all living things
- 27. Living things that grow in soil
- 28. Unwanted or unused materials
- 30. To save and protect resources
- 33. The natural world around us
- 34. Harm caused to the environment
- 35. Help provide oxygen and prevent erosion
- 37. Plants that provide oxygen and shelter