Across
- 2. - self controls;following rules and routines
- 4. - practices that keep you clean and healthy
- 5. - a person who works without pay to help others
- 7. - the presence of harmful substances in environment
- 8. - to process used materials so they can be used again
- 9. - a small electronic device or tool
- 10. - to create something new or improve an idea
Down
- 1. - variety of plant and animal life in an area
- 3. - steady effort to keep going despite difficulty
- 6. - containing substances needed for good health