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Classification Keys

Science: Year 3 & 4 National Curriculum, topic 6.5.1

Using Classification Keys to Group Living Things

We can use keys to help decide how to identify different living things.

Classification key

Classification key

  • A classification key is a series of questions about the characteristics of living things.
Uses of classification keys

Uses of classification keys

  • We use classification keys to group new species by their characteristics.
Classification key

Classification key

  • You can use this classification key to classify different living things.
  • You can find out what a living thing is classified as by answering 'yes' or 'no' questions and following the arrows.

Test yourself on Classification Keys

  • What is a classification key?

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