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a prerequisite for early reading and math activities
Molecular Formula: CoSO4
and other essential components
Flat Surface Electrode: Designed to prevent breakage and clogged junctions
Convection in Air Apparatus a prerequisite for early readingAn ideal apparatus for studying convection currents in the Air. Size: 23cm x 10cm x 10cm. This metal box has a glass front and two plastic chimneys. A candle is placed under one of the chimneys causing the convection currents. A piece of touch paper, producing smoke, is held at the mouth of the other chimney making the convection current dramatically visible. Premium Quality: Convection in Air Apparatus is made of high grade construction all the way
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