Real Coal Specimen with Cotton Bag, Large Lump Glassware_Protectors and stirrer for thermal-mixing measurements

and stirrer for thermal-mixing measurements of specific heat and heat of reaction

used to safely bleed accumulated charge from Leyden jars

20-40 mesh size

reading 675-810mm Hg for altitudes up to 600 meters

Real Coal Specimen with Cotton Bag, Large Lump Glassware_Protectors and stirrer for thermal-mixing measurementsOne large lump of coal. Approximately 2. 5"x2"x1. 5" egg or golf ball sized. Please due note that the actual size may very slightly and if you are unhappy with exact size of the coal, you can contact us for a free replacement. Premium cotton muslin bag keeps any created coal dust contained inside the bag Link included on card to an experiment to grow snowflakes on your coal. (Note: There are some additional required ingredients for the experiment that