EnglishAges 10-12

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 10-12

Prefixes & root words

Take your time. Show your thinking.

1. Add the prefix “inter-” (meaning “between”) to “national”. Write the new word.
“inter-” · “between” · Prefixes & root words
2. Add the suffix “-less” (meaning “without”) to “care”. Write the new word.
“-less” · “without” · Prefixes & root words
3. Add the prefix “un-” (meaning “not”) to the root word “happy”. Write the new word.
“un-” · “not” · Prefixes & root words
4. Add the suffix “-ful” (meaning “full of”) to “grace”. Write the new word.
“-ful” · “full of” · Prefixes & root words
5. Add the prefix “un-” (meaning “not”) to “certain”. Write the new word.
“un-” · “not” · Prefixes & root words
6. Add the prefix “anti-” (meaning “against”) to “freeze”. Write the new word.
“anti-” · “against” · Prefixes & root words
7. Add the prefix “super-” (meaning “above” or “beyond”) to “natural”. Write the new word.
“super-” · “above” · Prefixes & root words
8. Add the prefix “re-” (meaning “again”) to “write”. Write the new word.
“re-” · “again” · Prefixes & root words
9. Add the suffix “-ment” (forming an action or result noun) to “improve”. Write the new word.
“-ment” · “improve” · Prefixes & root words
10. Add the prefix “dis-” (meaning “opposite of”) to “connect”. Write the new word.
“dis-” · “opposite of” · Prefixes & root words
11. Add the prefix “bi-” (meaning “two”) to “cycle”. Write the new word.
“bi-” · “two” · Prefixes & root words
12. Add the suffix “-less” (meaning “without”) to “fear”. Write the new word.
“-less” · “without” · Prefixes & root words

12 questions · Seed 44 · Age guidance, not curriculum certification

View the answer key

Worksheet StudioAnswer key · Ages 10-12

Prefixes & root words

Answers and reasoning. Review before teaching.

1. Add the prefix “inter-” (meaning “between”) to “national”. Write the new word.
international
inter- + national = international, meaning between nations.
2. Add the suffix “-less” (meaning “without”) to “care”. Write the new word.
careless
care + -less = careless.
3. Add the prefix “un-” (meaning “not”) to the root word “happy”. Write the new word.
unhappy
un- + happy = unhappy, meaning not happy.
4. Add the suffix “-ful” (meaning “full of”) to “grace”. Write the new word.
graceful
grace + -ful = graceful.
5. Add the prefix “un-” (meaning “not”) to “certain”. Write the new word.
uncertain
un- + certain = uncertain, meaning not certain.
6. Add the prefix “anti-” (meaning “against”) to “freeze”. Write the new word.
antifreeze
anti- + freeze = antifreeze, a substance that acts against freezing.
7. Add the prefix “super-” (meaning “above” or “beyond”) to “natural”. Write the new word.
supernatural
super- + natural = supernatural.
8. Add the prefix “re-” (meaning “again”) to “write”. Write the new word.
rewrite
re- + write = rewrite, meaning to write again.
9. Add the suffix “-ment” (forming an action or result noun) to “improve”. Write the new word.
improvement
improve + -ment = improvement.
10. Add the prefix “dis-” (meaning “opposite of”) to “connect”. Write the new word.
disconnect
dis- + connect = disconnect.
11. Add the prefix “bi-” (meaning “two”) to “cycle”. Write the new word.
bicycle
bi- + cycle = bicycle, a vehicle with two wheels.
12. Add the suffix “-less” (meaning “without”) to “fear”. Write the new word.
fearless
fear + -less = fearless, meaning without fear.

12 questions · Seed 44 · Age guidance, not curriculum certification

Worksheet StudioPractice pack · Ages 10-12

Prefixes & root words

Take your time. Show your thinking.

1. Add the prefix “inter-” (meaning “between”) to “national”. Write the new word.
“inter-” · “between” · Prefixes & root words
2. Add the suffix “-less” (meaning “without”) to “care”. Write the new word.
“-less” · “without” · Prefixes & root words
3. Add the prefix “un-” (meaning “not”) to the root word “happy”. Write the new word.
“un-” · “not” · Prefixes & root words
4. Add the suffix “-ful” (meaning “full of”) to “grace”. Write the new word.
“-ful” · “full of” · Prefixes & root words
5. Add the prefix “un-” (meaning “not”) to “certain”. Write the new word.
“un-” · “not” · Prefixes & root words
6. Add the prefix “anti-” (meaning “against”) to “freeze”. Write the new word.
“anti-” · “against” · Prefixes & root words
7. Add the prefix “super-” (meaning “above” or “beyond”) to “natural”. Write the new word.
“super-” · “above” · Prefixes & root words
8. Add the prefix “re-” (meaning “again”) to “write”. Write the new word.
“re-” · “again” · Prefixes & root words
9. Add the suffix “-ment” (forming an action or result noun) to “improve”. Write the new word.
“-ment” · “improve” · Prefixes & root words
10. Add the prefix “dis-” (meaning “opposite of”) to “connect”. Write the new word.
“dis-” · “opposite of” · Prefixes & root words
11. Add the prefix “bi-” (meaning “two”) to “cycle”. Write the new word.
“bi-” · “two” · Prefixes & root words
12. Add the suffix “-less” (meaning “without”) to “fear”. Write the new word.
“-less” · “without” · Prefixes & root words

12 questions · Seed 44 · Age guidance, not curriculum certification

Worksheet StudioAnswer key · Ages 10-12

Prefixes & root words

Answers and reasoning. Review before teaching.

1. Add the prefix “inter-” (meaning “between”) to “national”. Write the new word.
international
inter- + national = international, meaning between nations.
2. Add the suffix “-less” (meaning “without”) to “care”. Write the new word.
careless
care + -less = careless.
3. Add the prefix “un-” (meaning “not”) to the root word “happy”. Write the new word.
unhappy
un- + happy = unhappy, meaning not happy.
4. Add the suffix “-ful” (meaning “full of”) to “grace”. Write the new word.
graceful
grace + -ful = graceful.
5. Add the prefix “un-” (meaning “not”) to “certain”. Write the new word.
uncertain
un- + certain = uncertain, meaning not certain.
6. Add the prefix “anti-” (meaning “against”) to “freeze”. Write the new word.
antifreeze
anti- + freeze = antifreeze, a substance that acts against freezing.
7. Add the prefix “super-” (meaning “above” or “beyond”) to “natural”. Write the new word.
supernatural
super- + natural = supernatural.
8. Add the prefix “re-” (meaning “again”) to “write”. Write the new word.
rewrite
re- + write = rewrite, meaning to write again.
9. Add the suffix “-ment” (forming an action or result noun) to “improve”. Write the new word.
improvement
improve + -ment = improvement.
10. Add the prefix “dis-” (meaning “opposite of”) to “connect”. Write the new word.
disconnect
dis- + connect = disconnect.
11. Add the prefix “bi-” (meaning “two”) to “cycle”. Write the new word.
bicycle
bi- + cycle = bicycle, a vehicle with two wheels.
12. Add the suffix “-less” (meaning “without”) to “fear”. Write the new word.
fearless
fear + -less = fearless, meaning without fear.

12 questions · Seed 44 · Age guidance, not curriculum certification