Wild animals - Classification worksheet - Free Printable

Let's solve this step by step.

---

1. Complete with the class of the animals.

We are given five circles, each containing images of animals. We need to identify which class each group belongs to: Mammals, Birds, Reptiles, Amphibians, Fish.

#### Circle 1:
- Animals: Yellow fish, seahorse, shark
- Analysis: All three live in water and are aquatic vertebrates.
- Fish have gills, fins, and live in water.
- Sharks and seahorses (though seahorses are bony fish) are fish.
- So, all are Fish.

✔ Answer: Fish

---

#### Circle 2:
- Animals: Frogs (orange, green, yellow)
- Analysis: Frogs are amphibians — they start life in water as tadpoles, breathe through gills, then develop lungs and live on land. They have moist skin and lay eggs in water.

✔ Answer: Amphibians

---

#### Circle 3:
- Animals: Parrot (macaw), flamingo, penguin
- Analysis: All have feathers, beaks, lay eggs, and are warm-blooded — typical bird traits.
- Penguins are birds, even though they can't fly.
- Flamingos and parrots are clearly birds.

✔ Answer: Birds

---

#### Circle 4:
- Animals: Elephant, zebra, giraffe
- Analysis: All are mammals — they have hair/fur, give birth to live young (except monotremes), nurse their young with milk, and are warm-blooded.

✔ Answer: Mammals

---

#### Circle 5:
- Animals: Turtle, crocodile, snake
- Analysis: These are all cold-blooded vertebrates with scales.
- Turtles and snakes are reptiles.
- Crocodiles are reptiles too (they're not fish or amphibians).

✔ Answer: Reptiles

---

✔ Summary for Part 1:

| Circle | Animals | Class |
|--------|--------|-------|
| 1 | Fish, seahorse, shark | Fish |
| 2 | Frogs | Amphibians |
| 3 | Parrot, flamingo, penguin | Birds |
| 4 | Elephant, zebra, giraffe | Mammals |
| 5 | Turtle, crocodile, snake | Reptiles |

---

2. Complete the sentences with the class of the animals.

Now, fill in the blanks using the correct animal class.

a. Snakes are → Reptiles
b. Zebras are → Mammals
c. Macaws are → Birds
d. Monkeys are → Mammals
e. Sharks are → Fish
f. Frogs are → Amphibians
g. Flamingos are → Birds
h. Crocodiles are → Reptiles
i. Lions are → Mammals
j. Elephants are → Mammals

---

✔ Final Answers:

#### Part 1:
- Top left circle: Fish
- Top middle circle: Amphibians
- Top right circle: Birds
- Bottom left circle: Mammals
- Bottom right circle: Reptiles

#### Part 2:
a. Snakes are reptiles
b. Zebras are mammals
c. Macaws are birds
d. Monkeys are mammals
e. Sharks are fish
f. Frogs are amphibians
g. Flamingos are birds
h. Crocodiles are reptiles
i. Lions are mammals
j. Elephants are mammals

---

✔ All done! The classification is based on biological characteristics:
- Mammals: Warm-blooded, fur/hair, give live birth (mostly), nurse young.
- Birds: Feathers, beaks, lay hard-shelled eggs, warm-blooded.
- Reptiles: Cold-blooded, scaly skin, lay eggs (or give live birth), breathe air.
- Amphibians: Moist skin, lay eggs in water, undergo metamorphosis (e.g., tadpole → frog).
- Fish: Live in water, gills, fins, cold-blooded.

Let me know if you'd like a printable version or explanation for kids!