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Description: SCIENCE FILM. BOY IN SCIENCE LAB. DOING EXPERIMENT. MEASURING CHEMICALS. WEIGHS SODIUM HYDROXIDE. SOAP MAKING. POURS POWDER INTO LIQUID. MEASURING FAT. KITCHEN FAT. GROSS! HEATED WITH BUNSEN BURNER. STIRS AND WARMS FAT. CHEMICAL REACTION. ANIMATED MOLECULES & CHEMICAL REACTION TO ILLUSTRATE POINT. GLYCERIN. POURED INTO MOLD. CUTS BLOCK OF SOAP. CU DIRTY HANDS. ANIMATED MICROSCOPIC CROSS-SECTION OF DIRTY SKIN. LATHERING. HANDS WITH SOAP AND WATER. RINSING SOAPY HANDS. SOAP MAKING ON COMMERCIAL SCALE. TRAIN CARLOADS OF OIL AND FAT. TANK CAR. MAN GETS SAMPLE FOR TESTING PIPES, KETTLES, VALVES. REFINERY. SPINNING DRILL-MIXER. FILTER. COLLECTING SAMPLE OF CLEAN OIL. QUALITY CONTROL. LOOKS AT TEST TUBE OF OIL SAMPLE. SOAPERY. HUGE MIXING KETTLE. BUBBLING MIXTURE. OPENS HATCH. GETS SAMPLE WITH WOODEN PADDLE. TASTES. TROUGH. ONTO ROLLER. LIQUID SOAP. RIBBONS OF SOAP ON CONVEYOR BELT GOES INTO DRYING OVEN. SOAP POWDER GOES INTO HOPPER. MIXER MACHINE. SOAP MAKING, MANUFACTURING. ADDING INGREDIENTS. REVOLVING SCREW. FORMED BARS OF SOAP ARE CUT. CAKES OF SOAP. INSPECTOR. GOES ON ASSEMBLY LINE.

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