Home

Science

Living things and their habitats

Using classification keys

Using classification keys

Videos

Summary

Exercises

Select Lesson

Living things and their habitats

Grouping living things

Using classification keys

Evolution and inheritance

Human evolution and what fossils can tell us

Offspring and inheritance

Adapting to different environments

Electricity

Electrical circuits, diagrams and symbols

Components in a series circuit

Light

How light travels

How we see

Reflective surfaces and their uses

Shadow formation and changes

The shape of shadows

Animals, including humans

The human circulatory system

Healthy lifestyles

The human digestive system

Explainer Video

Tutor: Jasmine

Summary

Using classification keys

In a nutshell

Scientists use classification keys to identify unknown plants and animals. A key involves a series of questions about the features of the plant or animal. Each question has two answers, one answer will take you to the next question and the other will reveal the unknown plant or animal.


Example 

Here is a classification key. 

Science; Living things and their habitats; KS2 Year 4; Using classification keys


Science; Living things and their habitats; KS2 Year 4; Using classification keys
We will identify this unknown creature.


PROCEDURE

1.
Starting at the top of the key, answer the first question.
2.
Our creature does not have wings so we choose 'no' and move on to the next question.
3.
Our creature does not have gills, so once again we choose 'no' and move on the next question.
4.
Our creature does not have scales - it must be a fox!
Read more

Learn with Basics

Learn the basics with theory units and practise what you learned with exercise sets!
Length:
Grouping living things

Unit 1

Grouping living things

Jump Ahead

Score 80% to jump directly to the final unit.

Optional

Using classification keys

Unit 2

Using classification keys

Final Test

Test reviewing all units to claim a reward planet.

Create an account to complete the exercises

FAQs - Frequently Asked Questions

How can a classification key identify animals?

A key involves a series of questions about the features of the plant or animal. Each question has two answers, one answer will take you to the next question and the other will reveal the unknown plant or animal.

What are classification keys?

A classification key is a series of questions about the features of the plant or animal.

©2020 - 2024 evulpo AG

Beta