Air pressure experiment (Urdu) thick paper can’t fly,

How to make alum crystal Level Elementary Concept of alum crystal There are many pure substances which make the peculiar shape crystals when these become the solid. Let’s make the alum crystal which can do in short period. Materials required for alum crystal alums potash (KAl(SO4)212H2O)110g, string, straw, paper, thermometer, pan, plastics container, glass cup,…

Chemistry Experiment: Production of Carbon Dioxide : Carbon dioxide is a naturally occurring chemical compound composed of 2 oxygen atoms each covalently double bonded to a single carbon atom. Materials & Tools Vinegar, Baking Soda, Ice cream Stick, Empty Plastic Bottle, Infusion tube, Scissors Spirit Lamp, Match Box, Large Iron Nail, Lime Water Test Tube(3)…