constants. variables. controls. trials.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: In an investigation, a student wants to see how a ball is affected by rolling it over a surface covered with sandpaper. In preparation for the trial, the student makes a list of the possible conditions that could affect the investigation. The student is most likely listing the
Possibilities:
- constants.
- variables.
- controls.
- trials.

variables.