which of the following is a constant or control variable in this experiment?
A the results observed over four days
B the brand of cleanser that worked
C the use of identical bathroom tiles
D the brand of cleanser that didn't work
and why you guys at it can you help me with the rest of the questions PWEESE
Nope!
You post the questions you're having problems with AND WHAT YOU THINK about each one, and a tutor will help you.
Giving out answers is not done here.
What do you think the answer is? What are control or constant variables? Google these terms if you don't know or can't find in your text.
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Please explain what you do not understand.
ok thx i will try it your the best :D
Correction: JISKHA tutors do not give answers.
To identify the constant or control variable in the given experiment, we need to understand the purpose of each variable.
A. The results observed over four days: This is the dependent variable, as it is what is being measured and observed in the experiment. It is not a constant or control variable.
B. The brand of cleanser that worked: This is an independent variable, as it is being manipulated or changed in the experiment to test its impact on the results. It is not a constant or control variable.
C. The use of identical bathroom tiles: This is a constant variable. It refers to keeping the same type of tiles in all the experimental conditions to eliminate the effect of tile differences on the results. It is a constant because it remains the same throughout the experiment.
D. The brand of cleanser that didn't work: Similar to option B, this is also an independent variable. It is being manipulated to see its effect. It is not a constant or control variable.
In conclusion, the constant or control variable in this experiment is option C, the use of identical bathroom tiles.