Difference between revisions of "Variable"
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*The type of leaf chosen was the '''independent variable'''. | *The type of leaf chosen was the '''independent variable'''. | ||
*The colour of the leaves was the '''dependent variable''' | *The colour of the leaves was the '''dependent variable''' | ||
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*The type of food chosen was the '''independent variable'''. | *The type of food chosen was the '''independent variable'''. | ||
*The colour of the iodine after being added to food was the '''dependent variable'''. | *The colour of the iodine after being added to food was the '''dependent variable'''. |
Revision as of 12:55, 20 August 2018
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 |
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Results Table | Variables |
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Experiment | Variables |
Cress seeds were put in pots with soil with half placed in a dark cupboard and half on a windowsill. |
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