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Prefix -Un - Printable English Worksheets class 4 - Wayground

Prefix -Un

11 questions

4th - 4th Grade

English

This Grade 4 English worksheet helps students understand and use the prefix “un-,” which means “not” or “the opposite of.” Through 11 multiple-choice questions, students identify the meanings of words such as unlock, unsafe, uncover, unable, and uneven, then apply those words to short sentence contexts. The worksheet moves from recognizing the prefix meaning to choosing the correct “un-” word for a definition or sentence, helping students connect word parts with complete-word meanings. It is useful for introducing or reviewing prefixes, checking vocabulary understanding, and identifying whether students can use context to distinguish similar choices. This is a free printable worksheet with an answer key for Grade 4 English instruction and independent practice.

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Worksheets

Prefix -Un

Total questions: 11

Name
Class
Date
1.

The prefix -un means

a)

will and the same

b)

not or opposite of

c)

not or the same

d)

will and opposite of

2.

What does it mean to unlock?

a)

rotate the key

b)

secure the door

c)

disengage or open a lock

d)

not secure and close the door

3.

What does unsafe mean?

a)

apologetic

b)

playing outdoors

c)

not stored

d)

not safe

4.

to expose something by removing its cover

a)

unveil

b)

unleash

c)

unmask

d)

uncover

e)

unravel

5.

not able to do something

a)

unlock

b)

unsafe

c)

uncover

d)

unable

e)

uneven

6.

not even; not straight; not following a regular pattern

a)

unlock

b)

unsafe

c)

uncover

d)

unable

e)

uneven

7.

Complete the sentence. The detective managed to (blank) the hidden clue.

a)

unable

b)

unlock

c)

uncover

d)

unlike

e)

unfair

8.

Complete the sentence. I heard Lila (blank) the front door.

a)

unlock

b)

unsafe

c)

uncover

d)

unable

e)

uneven

9.

Be careful on that path - the paving stones are (blank).

a)

unlock

b)

unsafe

c)

uncover

d)

unable

e)

uneven

10.

Be careful going inside, the building is

a)

unlock

b)

unsafe

c)

uncover

d)

unable

e)

uneven

11.

He was (blank) to play tennis after the injury.

a)

unlock

b)

unsafe

c)

uncover

d)

unable

e)

uneven

Answer Key

Prefix -Un

Total questions: 11

1.
b)

not or opposite of

2.
c)

disengage or open a lock

3.
d)

not safe

4.
d)

uncover

5.
d)

unable

6.
e)

uneven

7.
c)

uncover

8.
a)

unlock

9.
e)

uneven

10.
b)

unsafe

11.
d)

unable

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FAQs

What does the Prefix -Un worksheet help students learn?

This Grade 4 worksheet teaches that the prefix “un-” means “not” or “the opposite of.” Its 11 multiple-choice questions ask students to define and use words such as unlock, unsafe, uncover, unable, and uneven, building skill in using prefixes and sentence context to determine meaning.

How can I use this worksheet to teach the prefix “un-”?

Introduce “un-” as a prefix meaning “not” or “the opposite of,” then model how that meaning changes a base word, as in safe to unsafe or able to unable. Have students explain why each answer fits the definition or sentence before completing the multiple-choice items independently, and use the final sentence-based questions to discuss how context confirms the word choice.

What mistakes should I watch for on this prefix worksheet?

Students may remember that “un-” signals a change in meaning but confuse the specific vocabulary words, such as choosing unable for a sentence that requires uncover. They may also select a word based on a partial association rather than the full definition, so check whether they distinguish unlock, uncover, unsafe, unable, and uneven when completing the sentence items.

How do I assign and grade the Prefix -Un worksheet?

You can assign this Prefix -Un worksheet as a printable PDF or as a digital quiz on Wayground. It includes a complete answer key, and printable submissions can be graded by scanning student work with the Wayground for Teachers app. The printable format can also support classrooms that are reducing screen time.

How can I differentiate this prefix worksheet for my students?

In the worksheet’s Advanced Settings, adjust font spacing or choose a larger font size to make the 11 multiple-choice items easier to read. You can also enable a dyslexia-friendly font or translate the worksheet into another language when appropriate for students working with the “un-” vocabulary and sentence contexts.

Where can I find more worksheets like this on Wayground?

Wayground offers a broad collection of free printable worksheets and practice problems across subjects, including downloadable PDFs and answer keys to support essential skills and concepts. Browse more resources at https://wayground.com/en-us/worksheets.

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