Kids build a working hydroponic greenhouse and watch salad greens grow without soil. The Hydroponics Lab kit includes a greenhouse, cotton balls and wicks, a pipette, a magnifying glass, a measuring cup, and seeds for three kinds of salad greens. A 32 page full color manual walks through assembly, planting, tending, and harvesting. Along the way, kids sort seeds, identify seedlings, and turn their harvest into a snack.
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