Difference between revisions of "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'''. | ||
| − | *There are many '''control variables''' that should be done. If the food colour was blue or black it might give the wrong result, so all the food should be the same pale colour. | + | *There are many '''control variables''' that should be done. If the food colour was blue or black it might give the wrong result, so all the food should be the same pale colour. Another '''control variable''' is the amount of iodine used. Another '''control variable''' is the amount of food used. |
| − | Another '''control variable''' is the amount of iodine used. | ||
| − | Another '''control variable''' is the amount of food used. | ||
|} | |} | ||
Revision as of 09:26, 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.
Examples
An investigation to test the claim: All leaves are green.
| Oak Leaf | Beech Leaf | Ash Leaf |
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| Maple Leaf | Chestnut Leaf | Variables |
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| Results Table | Variables |
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|