leaves and light

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r_giselle
Posts: 1
Joined: Thu Mar 13, 2014 5:23 pm
Occupation: student 8th grade
Project Question: Does thee color or wavelength of light affect the chlorophyll content of a leaf?
Project Due Date: 3/14/14
Project Status: I am finished with my experiment and analyzing the data

leaves and light

Post by r_giselle »

what would the dependent, independent, and control group be in the procedure of the leaves and lights project from this website?
https://www.sciencebuddies.org/science- ... ml#summary :?
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Adean2001
Former Expert
Posts: 13
Joined: Fri Sep 20, 2013 9:31 am
Occupation: Stay at home mom
Project Question: Registering for ask an expert
Project Due Date: N/a
Project Status: Not applicable

Re: leaves and light

Post by Adean2001 »

Hi,

The independent variable is the one that you are controlling...in this case it would be the color of the light.

The dependent variable is the one you are measuring (the outcome)...in this case that would be the chlorophyll content of the leaves.

And for control (I actually say you need two controls here). You should treat one set of plants with white light (which contains all of the colors of the spectrum) and one set of plants with no light (keep it in the dark throughout the duration of the experiment).

Good luck!
Alexis
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