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When we began our Chia experiment, students designed an independent variable that would test the effect of light on the growth of a plant. Group C was locked in a dark cabinet for almost two weeks, with no exposure to sunlight. Most students predicted the Chias would not grow any hair at all, but when the cabinets were opened yesterday, students were in for a surprise! The Chias did grow hair, but because they were not exposed to sunlight, the chloroplasts were not able to effectively produce the green pigment chlorophyll. The result was yellow and white grass!

Posted by Ms. Larkin