Explore Using Keys to Identify Objects

In this worksheet, students are helped to practise their work on keys, using features to identify an object or living thing. Both spider keys and clue keys are practised.

Key stage: KS 2

Year: Year 4 Science worksheets

Curriculum topic: Living Things and Their Habitats

Curriculum subtopic: Classification Keys

Difficulty level:

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Worksheet Overview

Keys are used to help to identify something. They are really useful when studying habitats as there are so many plants and animals that students (and teachers!) don't know the name of. Keys help to find out the name of the organism.

daffodil pink rose

There are two main sorts of keys:

SPIDER KEYS use a branching system like this:

CLUE KEYS use clues to help find the name, like this:

Clue 1:	If the flower is yellow	go to Clue 2
	If the flower is not yellow	go to Clue 4

and so on.

In the following questions, use the keys to try to identify the object. You will also be asked to use the key to find the name of the object using clues about it, given in the key.

girl with magnifying glass

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