Question

read the scenario. what is the independent variable? scenario: a student wanted to test the hypothesis, \if the amount of antifreeze added to water increases, then the freezing point of water will decrease.\ the student set up two beakers with the same amount of liquid in each one. beaker a had 100% water. beaker b had 50% water and 50% antifreeze. both beakers were placed in a freezer with a thermometer in them. it was determined that beaker a froze at 0°c and beaker b froze at -20°c. the student repeated the experiment two more times using the same set up.

Explanation:

Step1: Recall IV definition

The independent variable (IV) is the factor that is manipulated or changed in an experiment to observe its effect on the dependent variable.

Step2: Analyze the scenario

In this experiment, the student is changing the amount of antifreeze added to water (Beaker A has 0% antifreeze, Beaker B has 50% antifreeze). The freezing point (dependent variable) is measured based on this change. So the factor being manipulated is the amount of antifreeze added to water.

Answer:

The amount of antifreeze added to water