A beaker is a common laboratory glassware, usually made of glass, plastic, or heat-resistant glass.
Beaker and cylindrical, there is a small opening on one side at the top of the slot, is advantageous for the dumping of liquid.
Some of the outer wall of the beaker with scale, can be roughly estimated volume of liquid in the beaker.
A beaker can be heated, in general should be uniform heating, heating is best not to dry.
