Final Answer:
1. Review → root: *view* → prefix: *re-* → meaning: look again
2. Harmonious → root: *mon* (from *harmon-*) → suffix: *-ious* → meaning: full of harmony
3. One-fourth → root: *four* → prefix: *one-* → meaning: one part out of four
4. Wooden → root: *wood* → suffix: *-en* → meaning: made of wood
5. Fearless → root: *fear* → suffix: *-less* → meaning: without fear
6. Unknown → root: *know* → prefix: *un-* → meaning: not known
7. Careful → root: *care* → suffix: *-ful* → meaning: full of care
8. Underneath → root: *neath* (from *neath*, related to *neath* = under) → prefix: *under-* → meaning: below or beneath
9. Breakable → root: *break* → suffix: *-able* → meaning: able to be broken
10. Preview → root: *view* → prefix: *pre-* → meaning: look before
11. Attempt → root: *tempt* → prefix: *at-* (variant of *ad-*) → meaning: try to do something
12. Artificial → root: *fic* (from *fac/fic* = make) → prefix: *arti-* (from *art-* = skill/craft) + *-ial* → meaning: made by human skill, not natural
13. Successful → root: *cess* (from *ced/cess* = go) → suffix: *-ful* + *-ous* → meaning: achieving success (full of success)
14. Cleanest → root: *clean* → suffix: *-est* → meaning: most clean
15. Further → root: *furth* (from *far*) → suffix: *-er* → meaning: more far
(Note: Some roots are simplified for grade-level understanding; e.g., *harmon-* is treated as root for *harmonious*, and *cess* for *successful* reflects Latin *cessus* = going.)
Parent Tip: Review the logic above to help your child master the concept of prefix suffix root word worksheet pdf.