Question

1. michael wanted to see what kitchen cleaner worked best for cleaning her counters. he used lysol, clorox, pinesol, and just water. for each cleaner, he put 5 milliliters of grape juice on the counter, sprayed the cleaner, and wiped it with one paper towel.

a. independent variable (iv):
b. dependent variable (dv):
c. control:
d. constants:

Explanation:

Part a: Independent Variable (IV)

The independent variable is what is changed or manipulated in an experiment. Here, Michael is testing different kitchen cleaners (Lysol, Clorox, Pine - Sol, water), so the type of kitchen cleaner is the IV.

The dependent variable is what is being measured or observed, which depends on the independent variable. In this experiment, we want to see how well the counters are cleaned, so the cleanliness of the counter (or how well the grape juice is removed) is the DV.

The control group is a group used for comparison, where the independent variable is not applied in the same way as in the experimental groups. Using just water (since it's a common "non - cleaning" agent for comparison with the other cleaners) serves as the control here.

Answer:

Type of kitchen cleaner (Lysol, Clorox, Pine - Sol, water)

Part b: Dependent Variable (DV)