Prefix Power: Understanding Meaning Changes in Words for Class 7 

This Grade 7 worksheet helps students understand how prefixes like un-, re-, pre-, dis-, and mis- change the meaning of words. By practicing prefix-based vocabulary, learners develop stronger comprehension skills and learn how small word parts can completely change meaning. The worksheet uses structured exercises to help students apply prefixes correctly in real-life contexts. 

 

Why Prefixes Matter in Vocabulary? 

Prefixes play a key role in understanding word meanings. For Grade 7 learners, this topic is important because: 
1. Prefixes help identify meaning changes in words quickly. 
2. They improve vocabulary and reading comprehension. 
3. They help students understand unfamiliar words easily. 
4. They strengthen grammar and sentence accuracy. 

 

What’s Inside This Worksheet? 

This worksheet includes five engaging activities to build prefix understanding:

🧠 Exercise 1 – True or False 
Students identify whether statements about prefix meanings are correct.

📋 Exercise 2 – Sort the Words 
Students classify words into prefix and non-prefix categories.

✏️ Exercise 3 – Fill in the Blanks 
Students choose the correct prefix word to complete each sentence.

🧠 Exercise 4 – Multiple Choice Questions 
Students select the correct meaning of prefix-based words.

📝 Exercise 5 – Sentence Rewriting 
Students correct incorrect meanings and rewrite sentences accurately.

This worksheet helps your child understand how word meanings change, improve vocabulary accuracy, and become a more confident reader.

 

✅ Answer Key (For Parents & Educators)

Exercise 1 – True or False 
1. True 
2. True 
3. False 
4. False 
5. True 
6. True 
7. False 
8. True 
9. False 
10. False 

Exercise 2 – Sort the Words 

Prefix Words: 
1. impossible 
2. undo 
3. misplace 
4. preheat 
5. unhappy 
6. rewrite 
7. preview 
8. disagree 
9. incorrect 
10. inactive 
11. nonsense 

Non-Prefix Words: 
1. table 
2. window 
3. postpone 
4. garden 

Exercise 3 – Fill in the Blanks 
1. rewrite 
2. unhappy 
3. preheat 
4. disagree 
5. incorrect 
6. undo 
7. preview 
8. under 
9. misplace 
10. impossible 

Exercise 4 – Multiple Choice Questions 
1. b) unhappy 
2. b) again 
3. c) preview 
4. a) differ in opinion 
5. c) incorrect 
6. c) before 
7. d) submarine 
8. c) reverse 
9. d) wrongly 
10. d) impossible 

Exercise 5 – Sentence Rewriting 
1. Unhappy means not happy. 
2. Rewrite means write again. 
3. Preview means see before the show. 
4. Disagree means to have a different opinion. 
5. Incorrect means not correct. 
6. Preheat means heat before cooking. 
7. Impossible means not possible. 
8. Undo means to reverse an action. 
9. Misplace means to put something wrongly. 
10. Submarine means under the sea. 

Help your child master prefixes and understand word meanings faster with structured vocabulary practice today. 
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