Question

maggie read that some plants grow better if the soil is acidic. she puts potting soil in two planting - containers and transplants two of her geraniums that seem about the same size into the pots. she places the pots in the same location so that they get the same amount of sunlight each day and are at the same temperature. she also makes sure they get the same amount of water. however, maggie puts a tablespoon of vinegar, a household acid, in the water she gives to one of the plants. she measures the growth of the plants every week for five weeks and records the results in a data - table. which of the following is the independent variable in the experiment? the sunlight the acidity of the water the growth of the plants the length of time for the experiment

Explanation:

In an experiment, the independent variable is the factor that the experimenter changes or manipulates. Maggie changes the acidity of the soil for one of the plants while keeping other factors like sunlight, temperature, water amount, and time of experiment constant. So the acidity of the soil is the independent variable.

Answer:

the acidity of the water