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Anatomy Biology Ecology Electricity Glassware Heat Kits Laboratoryware Light Magnetism Math Mechanics Meterology Plasticware Porcelainware Safety Sound Space Science Vials & Bottles	Water Clock   Digital Clock that runs without batteries Clock Module Water column with lid Wired with crocodile clips 3 Copper & 3 Zinc Electrodes Electrode separater Instruction manual Suitable for ages 8+ Product ID Product Name Specification Unit Quantity Add EL385-0000 Water Clock   ea