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An experiment should test only one variable (the independent variable) at a time.

If you are testing more than one variable at a time, you have no idea which variable is causing which effect.

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14y ago

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What are the experimental variables?

Experimental variables are factors being tested or measured in a scientific experiment. They can be categorized as independent variables (manipulated by the experimenter), dependent variables (respond to the changes in the independent variable), and controlled variables (kept constant to prevent interference).


How many variables should you have when you test a hypothesis?

The number of variables in a hypothesis test typically depends on the research question being addressed and the complexity of the relationship being studied. In general, it is recommended to include only the necessary variables that directly relate to the hypothesis being tested to minimize confounding factors and improve the clarity of results.


When applying the process of science which one is tested?

When applying the process of science, hypotheses are tested. Hypotheses are educated guesses about the relationship between variables and are used to make predictions that can be tested through experimentation or observation. The results of these tests help to determine whether the hypothesis is supported or rejected.


What is the variable in an experiment?

The variable in an experiment is the element that is being tested or measured. It is the factor that can change or be manipulated to observe its effect on the outcome of the experiment. There are independent variables, which are manipulated by the researcher, and dependent variables, which are what is being measured.


What is science variables?

Variables are the different thing in the experiment. Ex.-Problem-Which ball rolls fastest? Hypothesis-The Softball will roll fastest. Investigation-Roll the balls at the same time and time them with a stopwatch. Conclusion-Basketball rolled the fastest. Variables-The balls.

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