Vertebrates and Invertebrates
Explore the fascinating world of animals by classifying them into vertebrates (with backbones) and invertebrates (without backbones) in this Grade 3 science worksheet.
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Vertebrates and Invertebrates
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Read each question carefully and answer to the best of your ability. This worksheet will help you understand the difference between vertebrates and invertebrates.
Animals are amazing! Scientists classify them into different groups. One way to group animals is by whether they have a backbone or not. Animals with backbones are called **vertebrates**. Animals without backbones are called **invertebrates**.
1. What is a backbone?
A hard outer shell
A soft body part
A column of bones down the back
A type of plant
2. Which of these animals is a vertebrate?
Worm
Spider
Fish
Jellyfish
3. All insects are invertebrates.
True
False
4. Birds are invertebrates because they can fly.
True
False
5. Animals with a backbone are called .
6. Animals without a backbone are called .
7. Look at the image below. Is this animal a vertebrate or an invertebrate? How do you know?
8. Give two examples of an invertebrate animal.
Use the words below to complete the sentences.
9. Many , like humans, have an internal .
10. A worm is an example of an animal without a , so it is an .