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An Investigation into the effect of Different Wavelengths Of Light on the Growth of Plants Pilot study data: The pilot study was designed to test which growth medium would be best for the cress, as well as the affect of different wavelengths of light on the plants growths. Method: All three of the containers had different colour films applied to them blue, green and red. The sides were covered in black sugar paper to prevent light other than the filtered light from passing through the cress. The blue film container had cotton wool as the growth medium. The red container had Perlite as its medium and the green container had filter paper as their media. The containers were all placed in the same location and had enough water throughout the experiment. The plants were measured using a ruler. Ten seeds were planted per container. The cress plants were measured daily and watered as...

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