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Made from natural wood
It features completely new content
sound conduction of various substances
Literacy practice for phase 2 of the letters and sounds program
75-inch Diameter
Demonstration Meter with Changeable Interscapes Experiment kit Made from natural woodA versatile instrument and demonstration meter that can be converted to an A. C., or D. C. voltmeter or ammeter with selection of various ranges for each mode. With a high quality moving coil, spring controlled movement with full scale deflection of 5 mA or 100 mV D. C. The long pointer has a spade end and is clearly visible from a distance. Fitted in case with glass front and back. The instrument can be used with different dials to give different
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