a beaker cover
Beakers are used to contain liquids or to realize chemical reactions.
Watch glasses are used in chemistry experiments. It is used as a surface for liquid evaporation, It is also used as a holder in weighing solids and as a cover to beakers.
A watch glass is used in a laboratory setting to cover beakers and petri dishes to prevent contamination or evaporation. It is also used for evaporating liquids slowly to concentrate solutions or to cover samples during heating.
Beakers are not typically used for precise measuring due to their lack of graduated markings. They are better suited for holding and mixing liquids during experiments. For accurate measurements, it is recommended to use graduated cylinders or volumetric glassware.
the heat may not be distributed uniformly if solids are heated in beakers or flasks
it can be used to hold beakers over a bunsenburner
A tripod is largely used.
Milliliters (mL).
Beakers are used to measure and hold liquids in laboratory settings. They are typically used for mixing, heating, and pouring liquids during experiments.
A hot plate.
One can find plastic beakers for kids online at a variety of different websites. One can find plastic beakers for kids on websites such as Learning Resources, Amazon and eBay.
Another name for beakers is "laboratory glassware" or "glass beakers."