Question

Which of the following is an example of a controlled experiment?

-An experiment where there are many uncontrolled variables
- An experiment where there is only one variable
- An experiment where there are no variables

Answer 1

An experiment where there is only one variable.

Step-by-step explanation:

There is only one variable in the experiment.

Answer 2

- An experiment where there is only one variable

Step-by-step explanation: