

This Grade 3 Simple and Compound Sentences worksheet helps students clearly understand the difference between a single complete idea and two ideas joined together. Through structured grammar practice such as underlining, multiple choice questions, sentence rewriting, fill in the blanks, and paragraph writing, learners develop confidence in identifying and forming both simple and compound sentences. The activities gradually guide children from recognition to correct sentence construction using conjunctions like and, but, and so.
Learning the difference between simple and compound sentences strengthens sentence-building skills in Grade 3 because:
1. It helps students understand how ideas are connected using conjunctions.
2. It improves writing clarity by avoiding incomplete or incorrectly joined sentences.
3. It builds stronger paragraph writing with varied sentence structures.
4. It prepares learners for advanced grammar concepts like complex sentences.
This worksheet includes five focused grammar activities that build understanding step by step:
🧠 Exercise 1 – Identify the Sentence Type
Students underline simple sentences and circle compound sentences.
✏️ Exercise 2 – Multiple Choice Questions
Learners choose whether the given sentence is simple or compound.
📋 Exercise 3 – Sentence Rewriting
Students rewrite sentences to change them into the required type (simple or compound).
📝 Exercise 4 – Fill in the Blanks
Children complete a passage using suitable simple or compound sentences.
📖 Exercise 5 – Paragraph Writing
Students write a short paragraph using both simple and compound sentences correctly.
Exercise 1 – Identify the Sentence Type
Simple Sentences:
1. Amit waters the plants.
5. Kunal drew a poster.
6. Sana packed her bag.
8. The train reached Mumbai.
10. Priya opened the window.
Compound Sentences:
2. The clouds gathered and it rained.
3. We played cricket, and we laughed.
4. The dog barked and the cat hid.
7. Isha cooked rice and made dal.
9. The bell rang, and we lined up.
Exercise 2 – Multiple Choice
1. b
2. a
3. c
4. b
5. a
6. c
7. c
8. a
9. b
10. b
Exercise 3 – Sentence Rewriting
1. I wanted juice and she wanted water.
2. The bell rang.
3. It rained but we still played.
4. Gita sang.
5. The bus stopped and the doors opened.
6. We met at school.
7. Rakesh ran fast and he won.
8. She cooked rice.
9. Jay has a blue book and a pink pen.
10. The sun has set.
Exercise 4 – Fill in the Blanks
Last Saturday, our school organised a science exhibition. It was a huge event, and everyone was excited. The hall was beautifully decorated, and the models looked amazing. Students from different classes prepared interesting models. Some worked on solar energy, while others focused on recycling. Some parents visited the exhibition, and they were impressed by the creativity of the students. My best friend explained his project confidently. He knew all the details, and he answered every question perfectly. I was nervous at first, but I gained confidence as I started talking about my project. The judges moved from table to table. They asked questions and made notes. After the presentations, the winners were announced. Everyone clapped loudly, and everyone felt proud of their hard work. It was a memorable day for all of us. We will always remember it.
Answer may vary.
I went to the park yesterday because the weather was perfect. It was a sunny day, and the sky was clear with no clouds in sight. I played on the swings for a while, enjoying the breeze, and then I went to the slide. My friend joined me, and we raced to see who could slide down the fastest. Afterward, we walked over to the pond to feed the ducks. The ducks were swimming happily, and we tossed them some bread crumbs. We spent a lot of time exploring the park, looking at the flowers and trees. It was a great day, and I felt happy to spend time outside. I hope to visit the park again soon because it’s always fun to be there with my friends.
Exercise 5 – Paragraph Writing
Answers may vary.
Help your child connect ideas smoothly and write stronger sentences with structured grammar practice that builds real confidence.
A simple sentence has one complete thought, while a compound sentence joins two independent clauses using conjunctions like and, but, or so.
Conjunctions connect two complete sentences to make writing more detailed and meaningful in English grammar.
Children sometimes mistake long sentences for compound ones without checking if both parts can stand alone.