Hypothesis - A prediction about what you think will happen in an investigation, Pseudoscience - something that may look like science but does not use proper scientific testing or evidence,  Independent Variable - the thing that you change on purpose in an experiment, Dependent Variable - what you measure or observe in an experiment, Controlled Variable - something that stays the same to make sure the test is fair, Fair Testing - means only changing one variable at a time while keeping everything else the same. This helps scientists know that the results are reliable and caused by the change they made,

Fair testing and making predictions

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