A laboratory glass beaker is a cylindrical container made of glass, used in laboratories for holding, mixing, and heating liquids. The beakers have a flat bottom, a cylindrical body, and a pour spout, and often have graduated markings on the side that indicate the volume of liquid inside.

Beakers come in a range of sizes, from small, test tube-sized beakers to large, multi-liter beakers. They are made of borosilicate glass, which is a type of glass that is resistant to thermal shock, chemicals, and scratching.

Beakers are versatile and are used in many applications such as mixing, heating, and storing liquids. They are commonly used in chemistry and biology experiments, as well as in industrial settings. They can be used to hold and mix chemicals, hold liquids for heating or cooling, and store samples.

Beakers can be heated using a variety of methods such as burners, hot plates, and water baths. They can also be placed in a centrifuge for mixing purposes.

When using beakers, safety precautions should be taken to avoid injury. Beakers can break or shatter if they are dropped, heated too quickly, or if there is a sudden change in temperature. They should be handled with care and should not be heated or cooled too quickly.

In summary, A laboratory glass beaker is a cylindrical container made of glass, used in laboratories for holding, mixing, and heating liquids. They have a flat bottom, a cylindrical body, and a pour spout, and often have graduated markings on the side that indicate the volume of liquid inside. Beakers are made of borosilicate glass, which is a type of glass that is resistant to thermal shock, chemicals, and scratching. They are versatile and are used in many applications such as mixing, heating, and storing liquids and are commonly used in chemistry and biology experiments, as well as in industrial settings. They should be handled with care and should not be heated or cooled too quickly.