Scientists are interested in investigating how limestone can be used to remediate the effects of acid rain. They collect water from a lake that has recently been exposed to acid rain. They divide the water into 10 different tanks and add different amounts of limestone to nine of the tanks. No limestone is added to one of the tanks. The pH of the water in the tanks is measured before the limestone is added and once every hour for 24 hours. (f) Identify the independent variable in this investigation. (g) Identify the dependent variable in this investigation. (h) Identify the control group in this investigation. (i) Describe one additional variable that has not been mentioned that could affect the results of the investigation. (G) Describe a modification that could be made to the investigation that would affect the results.
Scientists are interested in investigating how limestone can be used to remediate the effects of acid rain. They collect water from a lake that has recently been exposed to acid rain. They divide the water into 10 different tanks and add different amounts of limestone to nine of the tanks. No limestone is added to one of the tanks. The pH of the water in the tanks is measured before the limestone is added and once every hour for 24 hours. (f) Identify the independent variable in this investigation. (g) Identify the dependent variable in this investigation. (h) Identify the control group in this investigation. (i) Describe one additional variable that has not been mentioned that could affect the results of the investigation. (G) Describe a modification that could be made to the investigation that would affect the results.
Concepts of Biology
1st Edition
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:Samantha Fowler, Rebecca Roush, James Wise
Chapter2: Chemistry Of Life
Section: Chapter Questions
Problem 6RQ: Using a pH meter, you find the pH of an unknown solution to be 8.0. How would you describe this...
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Transcribed Image Text:Scientists are interested in investigating how limestone can be used to remediate the effects of acid rain. They collect
water from a lake that has recently been exposed to acid rain. They divide the water into 10 different tanks and add
different amounts of limestone to nine of the tanks. No limestone is added to one of the tanks. The pH of the water in the
tanks is measured before the limestone is added and once every hour for 24 hours.
(f) Identify the independent variable in this investigation.
(g) Identify the dependent variable in this investigation.
(h) Identify the control group in this investigation.
(i) Describe one additional variable that has not been mentioned that could affect the results of the investigation.
(G) Describe a modification that could be made to the investigation that would affect the results.
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