Question

scientific inquiry unit review
the part of the experiment that remains the same for the control and experimental groups.
independent variable
control group/subject
constant/controlled variable
dependent variable

Explanation:

• An independent variable is intentionally changed in an experiment.
• A control group is the group not exposed to the test variable.
• A constant/controlled variable is kept identical across all groups to ensure valid comparisons.
• A dependent variable is measured to see changes from the independent variable.

The description matches the definition of a constant/controlled variable.

Answer:

constant/controlled variable