4th grade in Mrs. Lamb's Room
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    • SBAC math
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YOUR CART

Step 2:

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Variable are the things that change or could be changed in the experiment. There are 3 types of variables: independent, dependent and control variables.
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  • independent variable: what YOU are changing ​(change or test only ONE)
  • dependent variable: what you are trying to measure
  • controlled variable: things that stay the same in the experiment, keep the experiment fair

Example Experiment:

If your purpose question as:
"Which brand of bubble gum keeps its flavor longest?" 

The variables would be:
  • independent variable: different brands of bubble gum
  • dependent variable: the amount of time the flavor last
  • controlled variable: same amount of gum, all sugar free gum, all the same flavor of gum, and all gum that comes in a stick (not cubes or balls).


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Need more help?
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Here is a video that goes over the three types of 
 variables: independent, control, and dependent variables.
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