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Variables. There are three types of variables in an experiment . You can only change ONE variable (one thing) in an experiment. Purpose: What amount of water will make the flower grow the tallest?. CONTROL VARIABLE/CONTROL GROUP.
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There are three types of variables in an experiment. • You can only changeONEvariable (one thing) in an experiment
Purpose: What amount of water will make the flower grow the tallest?
CONTROL VARIABLE/CONTROL GROUP • A controlled variable/group is a variable/group that DOES NOT CHANGE. IT STAYS THE SAME. • Ask yourself: What does not change in this experiment or what stays the same?
Purpose: What amount of water will make the flower grow the tallest? What is the control variable?????
Independent variable • An independentvariable is something that is being changed or what your testing in the experiment. • You can only have ONE independent variable!!!!!!! • Ask yourself: What is being changed in the experiment or what am I testing?
Purpose: What amount of water will make the rose grow the tallest? What is the independent variable?
Dependent variable • A dependent variable is the variable that changes because of the independent variable. • It is the end result of the experiment. • Ask yourself: What is the end result of my experiment?
Purpose: What amount of water will make the rose grow the tallest? What is the dependent variable?
PRACTICE What age of student will put together a puzzle the quickest?
Control: Puzzle Independent: Student age Dependent: Time
Which gender mouse (male or female) will get through the maze the quickest?
Which gender mouse (male or female) will get through the maze the quickest?