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Classification

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Birds are warm-blooded.

Classification

Vertebrates are animals with backbones. KS2 Science teaches how mammals, birds, reptiles, amphibians, and fish are grouped by their features and life processes.

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Fascinating Fact:

Bats are the only mammals that can truly fly, using wings made of stretched skin supported by their elongated fingers.

In KS2 Science, pupils learn how vertebrates are grouped into five classes: mammals, birds, reptiles, amphibians, and fish. Each group shares unique characteristics that help with identification.

Key Terms

  • Vertebrate: An animal that has a backbone or spine.
  • Mammal: A warm-blooded vertebrate with hair or fur, and most give birth to live young.
  • Reptile: A cold-blooded vertebrate with dry, scaly skin that usually lays eggs.

Frequently Asked Questions (Click to see answers)

What are the five groups of vertebrates in KS2 Science?

The five groups of vertebrates are mammals, birds, reptiles, amphibians, and fish. Each group has special features that make it different from the others.

How can you tell if an animal is a mammal?

You can tell an animal is a mammal if it has hair or fur, is warm-blooded, and the mother usually feeds her young with milk.

What makes birds different from other vertebrates?

Birds are different because they have feathers, wings, beaks, and most lay hard-shelled eggs. They are also warm-blooded animals.

Try These Related Quizzes

1 .
The plant kingdom is divided into two important groups. What are they?
Grasses and trees
Green plants and non-green plants
Flowering and non-flowering plants
Coniferous and deciduous plants
Non-flowering plants include algae, lichens, ferns and mosses. These plants produce spores rather than seeds
2 .
Vertebrates are divided into five classes (groups). Which one of the following is not a class of vertebrates?
Mammals
Marsupials
Reptiles
Amphibians
Marsupials, such as kangaroos, are mammals
3 .
What does classification mean?
Grouping similar organisms together
Observing living organisms under a microscope
Randomly grouping living organisms in order to investigate their characteristics
Creating a classroom display of the results of an investigation
For example, all animals with feathers or all plants with flowers
4 .
If you were creating a classification key for sea animals, which question would separate dolphins from sharks?
Does the animal have eyes?
Is the animal a vertebrate?
Does the animal breathe through gills?
Is the animal a carnivore?
Dolphins must come to the surface of the water in order to breathe air, while sharks use their gills to breathe underwater. This is because dolphins are mammals, while sharks are fish
5 .
If you were creating a classification key for a group of animals found on an island, which question would not separate turtles and birds?
Does the animal have feathers?
Does the animal lay eggs?
Does the animal have a shell?
Is the animal warm-blooded?
Turtles (which are reptiles) and birds both lay eggs
6 .
Which class of animals is warm-blooded?
Birds
Amphibians
Reptiles
Fish
Mammals are also warm-blooded, of course!
7 .
What is an invertebrate?
An animal with wings
An animal with six legs
An animal without a spine
An animal which lays eggs
An animal with a spine is a vertebrate
8 .
Which of the following is not an invertebrate?
A spider
A millipede
An octopus
A snake
Snakes are vertebrates because they have a spine. Invertebrates are divided into many groups. The largest group is the arthropods, which includes insects, arachnids and crustaceans. Molluscs, such as the octopus, are also invertebrates
9 .
If you were creating a classification key for invertebrates, which question would distinguish between a spider and an ant?
Does the animal have an exoskeleton?
Does the animal have wings?
Does the animal have six legs?
Does the animal bear live young?
Although a small number of ants do have wings, most do not. The number of legs is the best difference between a spider and an ant
10 .
What uses a series of questions in order to identify unknown plants or animals?
Classification index
Bar chart
Comparison table
Classification key
A classification key can also be called an identification key. The questions use the similarities and differences between organisms to identify them
You can find more about this topic by visiting BBC Bitesize - What is classification?

Author:  Sheri Smith (PhD English Literature, English Teacher & Quiz Writer)
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