Exploring Word Parts: Morphology
A Grade 4 worksheet to help students understand morphology, including prefixes, suffixes, and root words.
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Exploring Word Parts: Morphology
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Read each question carefully and follow the instructions to show your understanding of word parts.
Part 1: Understanding Root Words
A root word is the most basic part of a word. It carries the main meaning and cannot be broken down further. Prefixes and suffixes can be added to root words to change their meaning.

1. What is the root word in 'unhappy'?
2. Circle the root word in each of the following words:
replay
helpful
baker
Part 2: Prefixes and Suffixes
A prefix is a word part added to the beginning of a root word to change its meaning. A suffix is a word part added to the end of a root word to change its meaning.
Fill in the blank with the correct word part (prefix or suffix) to complete the sentence.
1. The boy was able to tie his shoes.
2. She was very care when painting the picture.
3. Please write your name clearly.
4. The baker made delicious cook .
Part 3: Match the Word Part to its Meaning
Match each prefix or suffix on the left with its correct meaning on the right.
1. un-
a. again
2. re-
b. without, not
3. -ful
c. full of
4. -less
d. opposite of
Part 4: Building New Words
1. Add the prefix 'pre-' to the root word 'view'. What new word do you make and what does it mean?
2. Add the suffix '-er' to the root word 'teach'. What new word do you make and what does it mean?
Part 5: True or False
Read each statement and circle True or False.
1. A prefix is added to the end of a word.
True
False
2. The word 'beautiful' has the root word 'beauty'.
True
False
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