caption: The image shows a black and white drawing of two glass jars, one with a tap and the other with a bowl. At the bottom of the image, there is some text which reads "The Science of Chemistry". The jars appear to be made of glass and have a cylindrical shape with a wide base and a narrow neck. The bowl is filled with a liquid, likely a mixture of herbs and spices. The tap is connected to the jars and is used to control the flow of the liquid.