What is meant by watch glass in biology.please say me in simple words , make sure that you attach picture of it
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The watch glass is a laboratory equipment. It is a circular concave piece of glass, which is used to evaporate a liquid and also to hold solids while weighing them.
In Biological laboratories, a watch glass is used to examine specimens.
It is also used to heat a small quantity of a substance and could also be used as a cover for a beaker which prevents dust from entering the beaker.
Watch glasses are so called because of their similarity to the glass, which was used for the front of pocket watches.
Watchglass photo: https://en.wikipedia.org/wiki/Watch_glass#/media/File:Laboratory_Watch_glasses_of_different_sizes_2....
In Biological laboratories, a watch glass is used to examine specimens.
It is also used to heat a small quantity of a substance and could also be used as a cover for a beaker which prevents dust from entering the beaker.
Watch glasses are so called because of their similarity to the glass, which was used for the front of pocket watches.
Watchglass photo: https://en.wikipedia.org/wiki/Watch_glass#/media/File:Laboratory_Watch_glasses_of_different_sizes_2....
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