Question

What is the most difficult part of a controlled experiment

Answer 1

testing only one variable... a controlled variable means it's the one that stays the same in a controlled experiment it means there is only one manipulated or change variable

Answer 2

In a controlled experiment the most difficult part is to plot the constant graph in the change of parameters when the control value remains the same.

Explanation:

• In a controlled experiment there are usually one or more variables and a constant. The constant has its value same all through the experiments.

• The change in the values of the variable are noted as the experiment goes on.

• Finally there may or may not be graphical interpretation of the relationships between the two variables. However in a controlled experiments there may not be a fixed curve for the  different variables.

To know more about controlled experiment,

What is a controlled experiment? Brainly.in

https://brainly.in/question/7112198