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A watch glass is a circular concave piece of glass used in chemistry as a surface to evaporate a liquid, to hold solids while being weighed, for heating a small amount of substance, and as a cover for a beaker. When used to cover beakers, the purpose is generally to prevent dust or other particles from entering the beaker; the watch glass does ...
An evaporating dish is a piece of laboratory glassware used for the evaporation of solutions and supernatant liquids, [a] and sometimes to their melting point.Evaporating dishes are used to evaporate excess solvents – most commonly water – to produce a concentrated solution or a solid precipitate of the dissolved substance.
A Syracuse dish or Syracuse watch glass is a shallow, circular, flat-bottomed dish of thick glass. Usually, it is 67 mm in outer diameter and 52 mm in inner diameter. Usually, it is 67 mm in outer diameter and 52 mm in inner diameter.
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An Indiana school bus driver was busted for allegedly driving under the influence — with some of the 32 kids on her bus calling in to report her driving them erratically, authorities said.
Closeup of a Scoopula to display the logo Two Scoopulas, one atop the other to show full view. Scoopula is a brand name of a spatula-like scoop utensil used primarily in experimental laboratories to transfer solids: to a weighing paper for weighing, to a cover slip to measure melting point, or a graduated cylinder, or to a watch glass from a flask or beaker through scraping.
A teen actor, whose credits include the 2017 film Baby Driver and the reboot of the television action series MacGyver, died after he reportedly fell from a moving vehicle in Alabama last week ...