Question

In an experiment plants are being grown in 4 inch pots while being watered with different percentages of salt water. One group of plants is watered with 5 ml of plain tap water (0% salt)every day, a second group of plants gets 5ml of 1% salt water every day and a third group gets 5 ml of 3% salt water every day. The plant height is measured every day and the shade of green in the leaves is noted every day.

What is the dependent variable in this experiment?

Answer 1

The dependent variable in the experiment with plants being watered with different percentages of salt water is the plant height and the shade of green in the leaves.

Step-by-step explanation:

The dependent variable in this experiment is the plant height and the shade of green in the leaves, which are being measured every day. These are dependent variables because they are expected to change in response to the different concentrations of salt water that the plants are being watered with. The independent variable is the percentage of salt in the water, which is the condition that is being changed by the experimenter. In any experiment, controlling other factors that might affect the dependent variable is crucial. Such factors may include the amount of light, temperature, and soil composition, among others.