問題一覧
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Simple container for stirring, mixing and heating liquids commonly used in many laboratories
BEAKER
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Generally cylindrical in shape, with a flat bottom and a lip for pouring
BEAKER
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known as a culture tube or sample tube
TEST TUBE
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glassware consisting of a finger like length of glass or clear plastic with a rounded u-shaped bottom
TEST TUBE
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hold small and experiments
TEST TUBE
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rounded body with a single long neck
FLORENCE FLASK
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for uniform heating and ease of swirling
FLORENCE FLASK
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Test tube also called?
CULTURE TUBE
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widely used type of laboratory flask wich features a flat bottom, a conical body and a cylindrical neck
ERLENMEYER FLASK
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Erlenmeyer flask also called?
CONICAL FLASK
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suitable for heating liquids, The small neck reduces evaporative losses
ERLENMEYER FLASK
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used to accurately measure the volume of a liquid
GRADUATED CYLINDER
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generally more accurate and precise for this purpose than flasks and beakers
MEASURING VOLUME OF LIQUID
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a pipe with a wide mouth and narrow stem
FUNNEL
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used to channel liquid or fine-grained substances
FUNNEL
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without this ___ will occur
FUNNEL SPILLAGE
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a circular, concave piece of glass used in laboratories and for other purposesa circular, concave piece of glass used in laboratories and for other purposes
WATCH GLASS
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for evaporation of solids and supernatant fluids
EVAPORATING DISH
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used to evaporate excess water
EVAPORATING DISH
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cramic container capable of withstanding extreme temperatures
CRUCIBLE
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to prevent heat escaping
COVER
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container topped by special capsthat is intended to contain chemicals
RAEGENT BOTTLE
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device for combining a flammable gas with controlled amounts of air before ignition;
BUNSEN BURNER
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used to hold things and is placed in an iron stand
IRON CLAMP
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metal rod attached to a base
IRON STAND
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holds glassware and is attached to an iron stand
IRON RING
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to hold test tubes
TEST TUBE HOLDER
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made with nylon bristles attached to a twisted wire to knock the bottoms out of test tube
TEST TUBE BRUSH
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a brush that is long and narrow to clean the inside of glassware
TEST TUBE BRUSH
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place under a container that is being heated so that no direct contact
WIRE GAUGE
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3 legged equipment for platform
TRIPOD
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used to hold glass ware when not in use and during experimentations
TRIPOD
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to take and handle small quantities of solid chemicals.
SPATULA
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like a spoon, for scooping
SPATULA
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used to mix
STIRRING ROD
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used to crush and grind
MORTAR AND PESTLE
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measure small amounts of liquid
MEDICINE DROPPER
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storage of test tube
TEST TUBE RACK
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measure temperature
LABORATORY THERMOMETER
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used to see objects that are too small for the naked eye
MICROSCOPE
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first invented microscope
OPTICAL MICROSCOPE
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used to determine the mass of sample
TRIPLE BEAM BALANCE
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uses sliding weights
TRIPLE BEAM BALANCE
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sliding weights are called
RIDERS
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transport a measured volume of liquid
PIPETTE
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used to extract or deliver small amounts of liquid
PIPETTE
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vertical cylindrical piece of laboratory glassware with a volumetric graduation on its full length and a precision tap
BURETTE
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to dispense known amounts of a liquid reagent in experiments
BURETTE
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two flat platforms are attached to the top side of the beam
PLATFORM BALANCE
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platform balance also called
EQUAL-ARM BALANCE
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heats the wire loop on a stick that they use to spread the bacteria on the growth medium
ALCOHOL LAMP
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used to hold things
TONGS
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used in analytical chemistry for preparation of solutions
VOLUMETRIC FLASK
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making up solutions to a known volume
VOLUMETRIC FLASK
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spring fixed at one end with a hook
SPRING BALANCE
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measure the weight of an object by opposing the force of gravity
SPRING BALANCE