Across
- 3. to join
- 6. an element of something
- 8. to change
- 10. to convince
- 11. the effect of one thing on another
- 12. the purpose or use of something
- 13. to talk about something
- 14. to hold back
- 16. to watch
- 17. to show
Down
- 1. to explain
- 2. to defend
- 4. to show examples with pictures
- 5. a sample
- 7. to keep
- 9. unclear
- 11. to make a part of something
- 15. to guess