Question

What does it mean to have a fair test?​

Answer 1

to make sure that you change one factor at a time while keeping all other conditions the same.

Step-by-step explanation:

Answer 2

A test with the same control variable

Step-by-step explanation:

Say you're testing mentos and coke, you have to use the same type of mentos and coke to keep it fair. the only thing you change is the independent variable which would be the number of mentos in this case.