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The three variables of a science project are:

1. Controlled variable: A controlled variable means the part of the experiment that stays the same. This is also called the dependent variable.

2. Manipulated variable: A manipulated variable is something that can be changed by the experimenter. Also known as the independent variable.

3. Responding variable: A responding variable is the variable which you have to measure to get your results. So, you do not know the values of this variable until you measure it.

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13y ago
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12y ago

Controlled variables: The variables that stay the same

Manipulated variables: The 1 variable that changes

Responding variable: The result of the change

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13y ago

Dependent, Independent and Controlled

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Q: What are the 3 variables in a science fair project and what do they mean?
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