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8 questions with a Dinosaurs theme plus a full answer key. Perfect for Grade 4 English.
⬇ Download WorksheetStudents will correctly form comparative adjectives by adding -er to short adjectives or using more before longer adjectives when comparing two things.
After Q5, pause and have students sort the adjectives from the passage (tall, fierce, heavy, colorful, dangerous) into two columns on the board: '-er words' and 'more words.' This ties directly to the rule tested in every question and gives struggling students a visual anchor for Q6–Q8.
- Leo finds a tall fern and a short fern. Which sentence is correct?
- Leo sees two dino eggs. Which sentence is correct?
- Leo compares two dinosaurs at the meteor crater. Fill in the blank with the correct form. The Spinosaurus is ________ (fierce) than the Triceratops.
...plus 5 more questions in the full worksheet
Instructions: Read each question carefully and pick the correct way to compare two things. Remember: short adjectives get -er added, and longer adjectives use the word more in front.
Standard: L.4.1
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About this English worksheet for Grade 4
At the fourth-grade level, students need to master comparative adjectives to strengthen their sentence construction and writing clarity, which directly supports L.4.1 standards requiring demonstrated command of conventions. Teachers can use this worksheet to have students practice forming and using comparative adjectives (adding -er or -est endings, irregular forms) through guided exercises, then apply these structures to their own descriptive paragraphs or narratives.
This printable English worksheet is designed for Grade 4 students and covers Comparative Adjectives. The Dinosaurs theme keeps kids engaged while they practice essential English skills. Every worksheet includes a full answer key making it easy for parents and teachers to check work instantly. Aligned to Common Core State Standards (CCSS) for Grade 4 English. Print-ready at US Letter size. No login required — download and print in seconds.
Last updated: April 2026
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