Question

1. what term refers to the condition in the experiment that is changed or manipulated?

dependent variable
constants
control
independent variable

Explanation:

In an experiment, the independent variable is the condition that is deliberately changed or manipulated by the researcher. The dependent variable is what is measured and affected by the independent variable. Constants are factors that are kept the same throughout the experiment, and the control is a standard for comparison.

Answer:

D. independent variable