3rd Grade The Roots and Affix Institute - Worksheet & Printable

Look at the following pairs of words.

happy - unhappy
cover - uncover
lock - unlock


When the prefix ‘un’ is added to the word, what happens to its meaning?

A

The meaning remains the same.

B

The meaning becomes opposite of the given word.

C

The word becomes a synonym of the given word.

D

The word becomes clear to understand.

Standard: L.3.4.B

Domain: Language

Theme: Vocabulary Acquisition and Use

Description: Determine the meaning of the new word formed when a known affix is added to a known word (e.g., agreeable/disagreeable, comfortable/uncomfortable, care/careless, heat/preheat).

Based on the following sentences, what does the prefix “anti-,” mean?

The abolitionists were antislavery.

The peace marchers are antiwar.

He doesn’t like to go to parties; he is antisocial.

A

in favor of

B

against

C

before

D

after

Standard: L.3.4.B

Domain: Language

Theme: Vocabulary Acquisition and Use

Description: Determine the meaning of the new word formed when a known affix is added to a known word (e.g., agreeable/disagreeable, comfortable/uncomfortable, care/careless, heat/preheat).

Based on the following sentences, what does the prefix “micro,” mean?

A microchip, a tiny part of an electronic or computer device.

A microscope looks at tiny creatures.

A microphone makes a soft sound louder.

A

creature

B

larger

C

loud

D

small

Standard: L.3.4.B

Domain: Language

Theme: Vocabulary Acquisition and Use

Description: Determine the meaning of the new word formed when a known affix is added to a known word (e.g., agreeable/disagreeable, comfortable/uncomfortable, care/careless, heat/preheat).

How many legs does a tripod have?

A

one

B

two

C

three

D

four

Standard: L.3.4.B

Domain: Language

Theme: Vocabulary Acquisition and Use

Description: Determine the meaning of the new word formed when a known affix is added to a known word (e.g., agreeable/disagreeable, comfortable/uncomfortable, care/careless, heat/preheat).

What is the root word of capable?

A

cap

B

able

C

ble

D

capa

Standard: L.3.4.B

Domain: Language

Theme: Vocabulary Acquisition and Use

Description: Determine the meaning of the new word formed when a known affix is added to a known word (e.g., agreeable/disagreeable, comfortable/uncomfortable, care/careless, heat/preheat).


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