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Word Count: 832
Closing the ports changed the color of the flame Depending on the color of the flame is the combustion When the flame was orange is had incomplete combustion when the ports were closed and the flame turned blue it had complete combustion which is wanted Turning the needle valve at the bottom of the burner adjusted its height A lower flame was needed more because it was more controlled and easier to work with and using the needle valve accomplished this When burning the evaporation dish if an orange flame was used the dish turned black because o incomplete combustion Because carbon is produced from a yellow or orange flame the bottom of the dish turned black The copper wire when held in the flame changed color If it was held at the very tip of the blue cone it turned bright red in heat The best flame therefore was a flame that had a blue cone in the center bottom The best way to cut the glass used in Glass Manipulations is by sawing it harshly in the same place with a file By cutting into the glass and making a ridge with the file it became easier to break When fire polishing the glass it turned its harsh edges into smooth rounder ones The fire melted the sharp ends into smooth workable ones When the glass was being bent it was easier to maneuver in the heat of the flame The flame made the glass weaker and therefore more flexible The lubricant was used to insert the glass tubing making the insertion easier and less of a hassle Because the lubricant was used the glass slide in more comfortable and the worry of it snapping was reduced The slick surface of the glazed paper is preferred over regular paper Chemicals slide easily off this paper so when the salt was poured into the funnel the glazed paper provided a slicker surface allowing the
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