Plants Maze, school science project

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Plant a sprouting potato in moist soil in a pot. Place it in the corner of a shoebox and cut a hole in the oppositeside. Inside stick two partitions, so that a small gap is

left. Close the box and place it in a window. After a couple of days the shoot has found its way through the dark maze to the light. Plants have light-sensitive cells, which guide the direction of growth. Even the minimum amount of light entering the box causes the shoot to bend. It looks quite white, because the important green

colouring material, chlorophyll, necessary for healthy growth, cannot be formed in the dark.