Difference between revisions of "Variable"
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*'''Control Variable''': How much you watered them. They should both be watered the same amount to make it a [[Fair Test|fair test]]. | *'''Control Variable''': How much you watered them. They should both be watered the same amount to make it a [[Fair Test|fair test]]. | ||
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+ | ==Key Stage 3== | ||
+ | ===Meaning=== | ||
+ | A '''variable''' is anything which could affect the [[result]]s of an [[experiment]] or that you can change, keep the same, or [[measure]]/[[observe]] in an [[investigation]]. | ||
+ | |||
+ | ===About Variables=== | ||
+ | : There are three types of variable. | ||
+ | *[[Independent Variable]]: The thing you choose to change in an [[investigation]]. | ||
+ | *[[Control Variable]]s: The things you keep the same in an [[investigation]] to make it a [[Fair Test|fair test]]. | ||
+ | *[[Dependent Variable]]: The thing you measure or observe in an [[investigation]]. | ||
+ | : In an experiment or investigation there should only be 1 [[Independent Variable|independent variable]]. If you change more than one thing at a time, it is not a [[Fair Test|fair test]]. |
Revision as of 14:48, 28 November 2018
Contents
Key Stage 2
Meaning
A variable is something that you can change, keep the same, or measure/observe in an investigation.
About Variables
- There are three types of variable.
- Independent Variable: The thing you choose to change in an investigation.
- Control Variables: The things you keep the same in an investigation to make it a fair test.
- Dependent Variable: The thing you measure or observe in an investigation.
- In an experiment or investigation there should only be 1 independent variable. If you change more than one thing at a time, it is not a fair test.
Examples
An investigation to test the claim: All leaves are green.
Oak Leaf | Beech Leaf | Ash Leaf |
Maple Leaf | Chestnut Leaf | Variables |
|
Results Table | Variables |
|
Experiment | Variables |
Cress seeds were put in pots with soil with half placed in a dark cupboard and half on a windowsill. |
|
Key Stage 3
Meaning
A variable is anything which could affect the results of an experiment or that you can change, keep the same, or measure/observe in an investigation.
About Variables
- There are three types of variable.
- Independent Variable: The thing you choose to change in an investigation.
- Control Variables: The things you keep the same in an investigation to make it a fair test.
- Dependent Variable: The thing you measure or observe in an investigation.
- In an experiment or investigation there should only be 1 independent variable. If you change more than one thing at a time, it is not a fair test.