You decide to do to determine the effect of used cigarette butts on water from M

Question

You decide to do to determine the effect of used cigarette butts on water from Morses Creek, NJ and how it affects the water quality index. In the lab, you set up 3 large tanks of water from Morses Creek for the control group and 3 large tanks for the experimental group.

1. What is the independent variable in this experiment?

2. Name four dependent variables that you should measure.

3. What are three controlled variables?

4. Explain how you should set up the control group tanks. Then explain how you would set up the experimental group tanks.

Explanation / Answer

1) an independent variable is the one which hypothesised to affect the depedndent variable

here used ciggarette butts

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