Across
- 1. A machine that can save water when used correctly
- 4. A material that lasts a long time and can damage nature
- 6. Something useful that people depend on, such as water or energy
- 9. Things that are thrown away and no longer used
- 10. To collect used materials and turn them into something new
- 11. All living and non-living things not made by humans
- 12. Related to protecting the natural world
- 15. To keep something safe from harm
Down
- 2. The natural world that includes people, animals, plants, and weather
- 3. Harmful waste that makes air, water, or land dirty
- 5. Energy used to power lights, computers, and machines
- 7. The act of reusing waste instead of throwing it away
- 8. To use less of something over time
- 13. The power needed to make things move or work
- 14. Power created from sunlight