Ms.Canto performed an experiment with her class. She put one white flower into three different breakers ( as shown in the image below). In 1 beaker she placed 30 mL of boiling water with a single drop of blue food coloring. In beaker 2 she placed 30 mL of room temperature water with a single drop of blue food coloring. In beaker 3 she placed 30 mL of cold water with a single drop of blue food coloring. After 1 hour she checked the flowers to see if the color of the flowers had changed. What are independent, dependent, and controlled variables in Ms. Canto's Class experiment? Note: To earn full credit please make sure to use A.C.E. writing strategies.

Answer 1

The independent variable in Ms. Canto's experiment is the temperature of the water (boiling, room temperature, cold). The dependent variable is the color change of the white flower. The controlled variables are the amount of water (30mL), the type of food coloring (blue), and the type of flower used.

By changing the independent variable (temperature of the water), Ms. Canto was able to observe how it affected the dependent variable (color change of the white flower). The controlled variables ensured that any changes observed in the dependent variable were due to the independent variable and not other factors.