Push toothpicks halfway into a potato. Place it in a glass of water with toothpicks resting on the rim. Make sure the end of the potato is immersed in water. Place glass where it will receive adequate light. Maintain water level so that the bottom of the potato is always immersed. In a few weeks roots will grow out of sides and bottom and leaves with grow out of the top. The plant can be left in water or replanted in soil. Children can observe root growth.
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