Control of Plant Pigments

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NMNLTIN
Posts: 1
Joined: Sun Apr 14, 2013 1:10 pm
Occupation: student 9th grade
Project Question: Biology, plant pigments
Project Due Date: Thursday, April 19, 2013
Project Status: I am conducting my experiment

Control of Plant Pigments

Post by NMNLTIN »

We are conducting the 'What Color Are the Leaves Really Turning?' experiment and we cannot find a control, independent variable, and dependent variable.
deleted-63393
Posts: 45
Joined: Tue Jan 10, 2012 6:16 pm
Occupation: Biotechnology
Project Question: n/a
Project Due Date: n/a
Project Status: Not applicable

Re: Control of Plant Pigments

Post by deleted-63393 »

Hello,
In essence your control is your blank piece of paper with no leave pulp on it. For this experiment you could use the blank piece of paper strip to make sure there are no dyes interfering from either the jar or the alcohol you are using that could mess with your results. Although if you use alcohol that is from an unsealed container, and a clean jar, you most likely wont see a thing. However, if you were using a liquid that had color to it you would want to know in your experiment how much coloring came from you leave vs the liquid you were using, so a control would be nice to have.

Hope this helps!
Katie
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