EnglishAges 13-15

Prefixes & root words

Combine prefixes with root words and explain how the prefix changes the meaning. Review suitability for your learners before teaching.

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Age band:Ages 10-12 Ages 13-15

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Worksheet StudioPractice pack · Ages 13-15

Prefixes & root words

Take your time. Show your thinking.

1. Add the prefix “un-” (meaning “not”) to “certain”. Write the new word.
“un-” · “not” · Prefixes & root words
2. Add the prefix “bi-” (meaning “two”) to “cycle”. Write the new word.
“bi-” · “two” · Prefixes & root words
3. Add the prefix “auto-” (meaning “self”) to “biography”. Write the new word.
“auto-” · “self” · Prefixes & root words
4. Add the prefix “un-” (meaning “not”) to the root word “happy”. Write the new word.
“un-” · “not” · Prefixes & root words
5. Add the prefix “re-” (meaning “again”) to the root word “build”. Write the new word.
“re-” · “again” · Prefixes & root words
6. Add the suffix “-ful” (meaning “full of”) to “grace”. Write the new word.
“-ful” · “full of” · Prefixes & root words
7. Add the prefix “pre-” (meaning “before”) to “heat”. Write the new word.
“pre-” · “before” · Prefixes & root words
8. Add the prefix “pre-” (meaning “before”) to the root word “view”. Write the new word.
“pre-” · “before” · Prefixes & root words
9. Add the suffix “-ness” (forming a state or quality noun) to “kind”. Write the new word.
“-ness” · “kind” · Prefixes & root words
10. Add the suffix “-ful” (meaning “full of”) to “hope”. Write the new word.
“-ful” · “full of” · Prefixes & root words
11. Add the suffix “-ment” (forming an action or result noun) to “improve”. Write the new word.
“-ment” · “improve” · Prefixes & root words
12. Add the prefix “re-” (meaning “again”) to “write”. Write the new word.
“re-” · “again” · Prefixes & root words

12 questions · Seed 47 · Age guidance, not curriculum certification

View the answer key

Worksheet StudioAnswer key · Ages 13-15

Prefixes & root words

Answers and reasoning. Review before teaching.

1. Add the prefix “un-” (meaning “not”) to “certain”. Write the new word.
uncertain
un- + certain = uncertain, meaning not certain.
2. Add the prefix “bi-” (meaning “two”) to “cycle”. Write the new word.
bicycle
bi- + cycle = bicycle, a vehicle with two wheels.
3. Add the prefix “auto-” (meaning “self”) to “biography”. Write the new word.
autobiography
auto- + biography = autobiography, a life story written by oneself.
4. Add the prefix “un-” (meaning “not”) to the root word “happy”. Write the new word.
unhappy
un- + happy = unhappy, meaning not happy.
5. Add the prefix “re-” (meaning “again”) to the root word “build”. Write the new word.
rebuild
re- + build = rebuild, meaning to build again.
6. Add the suffix “-ful” (meaning “full of”) to “grace”. Write the new word.
graceful
grace + -ful = graceful.
7. Add the prefix “pre-” (meaning “before”) to “heat”. Write the new word.
preheat
pre- + heat = preheat, meaning to heat beforehand.
8. Add the prefix “pre-” (meaning “before”) to the root word “view”. Write the new word.
preview
pre- + view = preview, meaning to view beforehand.
9. Add the suffix “-ness” (forming a state or quality noun) to “kind”. Write the new word.
kindness
kind + -ness = kindness, the quality of being kind.
10. Add the suffix “-ful” (meaning “full of”) to “hope”. Write the new word.
hopeful
hope + -ful = hopeful, meaning full of hope.
11. Add the suffix “-ment” (forming an action or result noun) to “improve”. Write the new word.
improvement
improve + -ment = improvement.
12. Add the prefix “re-” (meaning “again”) to “write”. Write the new word.
rewrite
re- + write = rewrite, meaning to write again.

12 questions · Seed 47 · Age guidance, not curriculum certification

Worksheet StudioPractice pack · Ages 13-15

Prefixes & root words

Take your time. Show your thinking.

1. Add the prefix “un-” (meaning “not”) to “certain”. Write the new word.
“un-” · “not” · Prefixes & root words
2. Add the prefix “bi-” (meaning “two”) to “cycle”. Write the new word.
“bi-” · “two” · Prefixes & root words
3. Add the prefix “auto-” (meaning “self”) to “biography”. Write the new word.
“auto-” · “self” · Prefixes & root words
4. Add the prefix “un-” (meaning “not”) to the root word “happy”. Write the new word.
“un-” · “not” · Prefixes & root words
5. Add the prefix “re-” (meaning “again”) to the root word “build”. Write the new word.
“re-” · “again” · Prefixes & root words
6. Add the suffix “-ful” (meaning “full of”) to “grace”. Write the new word.
“-ful” · “full of” · Prefixes & root words
7. Add the prefix “pre-” (meaning “before”) to “heat”. Write the new word.
“pre-” · “before” · Prefixes & root words
8. Add the prefix “pre-” (meaning “before”) to the root word “view”. Write the new word.
“pre-” · “before” · Prefixes & root words
9. Add the suffix “-ness” (forming a state or quality noun) to “kind”. Write the new word.
“-ness” · “kind” · Prefixes & root words
10. Add the suffix “-ful” (meaning “full of”) to “hope”. Write the new word.
“-ful” · “full of” · Prefixes & root words
11. Add the suffix “-ment” (forming an action or result noun) to “improve”. Write the new word.
“-ment” · “improve” · Prefixes & root words
12. Add the prefix “re-” (meaning “again”) to “write”. Write the new word.
“re-” · “again” · Prefixes & root words

12 questions · Seed 47 · Age guidance, not curriculum certification

Worksheet StudioAnswer key · Ages 13-15

Prefixes & root words

Answers and reasoning. Review before teaching.

1. Add the prefix “un-” (meaning “not”) to “certain”. Write the new word.
uncertain
un- + certain = uncertain, meaning not certain.
2. Add the prefix “bi-” (meaning “two”) to “cycle”. Write the new word.
bicycle
bi- + cycle = bicycle, a vehicle with two wheels.
3. Add the prefix “auto-” (meaning “self”) to “biography”. Write the new word.
autobiography
auto- + biography = autobiography, a life story written by oneself.
4. Add the prefix “un-” (meaning “not”) to the root word “happy”. Write the new word.
unhappy
un- + happy = unhappy, meaning not happy.
5. Add the prefix “re-” (meaning “again”) to the root word “build”. Write the new word.
rebuild
re- + build = rebuild, meaning to build again.
6. Add the suffix “-ful” (meaning “full of”) to “grace”. Write the new word.
graceful
grace + -ful = graceful.
7. Add the prefix “pre-” (meaning “before”) to “heat”. Write the new word.
preheat
pre- + heat = preheat, meaning to heat beforehand.
8. Add the prefix “pre-” (meaning “before”) to the root word “view”. Write the new word.
preview
pre- + view = preview, meaning to view beforehand.
9. Add the suffix “-ness” (forming a state or quality noun) to “kind”. Write the new word.
kindness
kind + -ness = kindness, the quality of being kind.
10. Add the suffix “-ful” (meaning “full of”) to “hope”. Write the new word.
hopeful
hope + -ful = hopeful, meaning full of hope.
11. Add the suffix “-ment” (forming an action or result noun) to “improve”. Write the new word.
improvement
improve + -ment = improvement.
12. Add the prefix “re-” (meaning “again”) to “write”. Write the new word.
rewrite
re- + write = rewrite, meaning to write again.

12 questions · Seed 47 · Age guidance, not curriculum certification