Animal Classification Sorting Worksheet - Kidpid - Free Printable

Let's solve the Animal Classification Activity by identifying each animal and placing it into the correct category: reptiles, birds, fish, mammals, or amphibians.

Here are the animals shown in the image (arranged in rows):

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Row 1:

1. Turtle → Reptile
- Turtles have scaly skin, lay eggs, and are cold-blooded → Reptile

2. Owl → Bird
- Has feathers, wings, beak, and lays hard-shelled eggs → Bird

3. Crocodile → Reptile
- Scaly skin, cold-blooded, lays eggs → Reptile

4. Duck → Bird
- Feathers, wings, beak, lays eggs → Bird

5. Jellyfish → Not in the five categories listed
- Jellyfish are invertebrates, specifically cnidarians → Not a reptile, bird, fish, mammal, or amphibian
- But since the instructions ask to classify only into those five, we may skip or note it as "other" — however, this might be an error in the activity. Let's keep it aside for now.

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Row 2:

6. Seahorse → Fish
- Lives in water, has gills, fins, and is a vertebrate → Fish
- Even though it looks different, seahorses are fish!

7. Cobra → Reptile
- Snake with scales, cold-blooded, lays eggs → Reptile

8. Starfish → Not in the five categories
- Starfish are echinoderms, not fish, reptiles, etc. → Other (not classified here)

9. Lizard → Reptile
- Scales, cold-blooded, lays eggs → Reptile

10. Dog → Mammal
- Warm-blooded, has fur, gives birth to live young, nurses with milk → Mammal

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Row 3:

11. Cat → Mammal
- Fur, warm-blooded, gives live birth, nurses young → Mammal

12. Parrot → Bird
- Feathers, beak, wings, lays eggs → Bird

13. Snake (colored) → Reptile
- Scales, cold-blooded, legless reptile → Reptile

14. Walrus → Mammal
- Warm-blooded, has hair (though sparse), gives birth to live young, breathes air → Mammal

15. Frog → Amphibian
- Smooth skin, lives in water and on land, undergoes metamorphosis → Amphibian

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✔ Final Classification:

#### Reptiles:
- Turtle
- Crocodile
- Cobra
- Lizard
- Snake

#### Birds:
- Owl
- Duck
- Parrot

#### Fish:
- Seahorse

#### Mammals:
- Dog
- Cat
- Walrus

#### Amphibians:
- Frog

#### Not in Categories (Note):
- Jellyfish → Cnidarian (not classified here)
- Starfish → Echinoderm (not classified here)

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📌 Summary:

| Category | Animals Listed |
|----------------|----------------|
| Reptiles | Turtle, Crocodile, Cobra, Lizard, Snake |
| Birds | Owl, Duck, Parrot |
| Fish | Seahorse |
| Mammals | Dog, Cat, Walrus |
| Amphibians | Frog |

> ⚠️ Note: Jellyfish and starfish do not belong to any of the five categories listed. They are marine invertebrates. This might be a mistake or intentional to test critical thinking.

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✔ How to Use:

Cut out each animal and paste them into the appropriate column on the next page based on the classification above.

Let me know if you'd like a printable version or help creating the sorting chart!