Spelling

1. earth

2. peer

3. twirl

4. burnt

5. smear

6. further

7. appear

8. worthwhile

9. nerve

10. pier

11. squirm

12. weary

13. alert

14. murmur

15. thirsty

16. reverse

17. worship

18. career

19. research

20. volunteer

21. yearn

22. engineer

23. interpret

24. dreary

25. external