Key Stage 2
Meaning
Variation is the difference between living creatures.
- Singular Noun: Variation
- Plural Noun: Variations
- Verb: To vary
- Adjective: Varied
About Variation
- There is variation between different species; different species look different from each other.
- There is variation within a species, creatures of the same species don't look exactly the same as each other.
- Variation is useful to help a species survive. If everyone was the same, what kills one person might kill everyone.
- Variation within a species can be inherited or caused by the environmental. Some people are born with 3 fingers (inherited variation) but others might lose fingers in an accident (environmental variation).
Examples of Inherited Variation
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| Eye colour varies from person to person.
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The pattern on the backs of frogs shows variation.
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Variation in patterns on snail shells means some are better camouflaged than others.
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Examples of Environmental Variation
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| These mice are identical twins, but one has damaged its tail. The difference is an example of environmental variation.
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One of these identical twins has decided to grow a mustache the other has decided to shave completely. This is environmental variation.
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