Condition change or phase change?

When applying the scientific method, people will manipulate or observe “variables.” A variable refers to any factor a scientist can control, change, or measure in an experiment.

Examples of variables: a drug designed to cure strep throat, an exercise method geared towards helping people lose weight, a reinforcement program used to improve students’ homework completion.

When a scientist applies a variable, the graphed data reflects the degree of change. A graph showing the data from an experiment will show different variables as “conditions.” Conditions show the presence or absence of variables. 

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