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Product Number: SB46712
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An excellent tool for any earth science or environmental science teacher, this transparent plastic tray can be used on an overhead projector or on a tabletop. Use the included pump to move colored dye throughout the model to demonstrate groundwater concepts such as aquifers, sinkholes, caverns, geysers, and hot springs. Includes self-contained groundwater table, water pump (120V AC), tubing, eyedropper, and teacher’s guide. Minor assembly required.WARNING: Choking Hazard. Small Parts. Not for children under 3 yrs.