Controls+and+Variabels

• An experimenter changes one factor and observes or measures what happens.
 * Scientific Method - Controls and Variables **

The Control Variable • The experimenter makes a special effort to keep other factors constant  so that they will not effect the outcome. •  Those factors are called control variables. • Controls are NOT  being tested • <span style="color: black; font-family: 'times new roman','serif'; font-size: 21px;">Controls are used for <span style="color: #ff3300; font-family: 'times new roman','serif'; font-size: 21px;">COMPARISON <span style="font-family: 'Times New Roman','serif'; font-size: 21px;">• <span style="color: black; font-family: 'times new roman','serif'; font-size: 21px;">The factor that is changed is known as the <span style="color: #ff3300; font-family: 'times new roman','serif'; font-size: 21px;">independent variable. <span style="font-family: 'Times New Roman','serif'; font-size: 21px;">• <span style="color: black; font-family: 'times new roman','serif'; font-size: 21px;">The factor that is measured or observed is called the <span style="color: #ff3300; font-family: 'times new roman','serif'; font-size: 21px;">dependent variable.