問題一覧
1
It balance measures the weight of an object by opposing the force of gravity with the force of an extended spring
spring balance
2
Simply a spring fixed at one end with a hook to attach an object at the other
spring balance
3
A equipment made of ceramic that can withstand extreme heat it is used as a platform where you can heat things
clay triangle
4
A three-legged equipment, generally used as a platform of some sort
tripod
5
A laboratory device for evaporation of solids and supernatant fluids, and sometimes to their melting point
evaporating dish
6
Used to hold many different things such as flasks, crucibles, and evaporating dishes when they are hot
tongs
7
A form of equal-arm balance in which two flat platforms are attached to the top side of the beam, one at each end
platform balance
8
A tool used to crush, grind, and mix solid substances
mortar and pestle
9
A ceramic container capable of withstanding extreme temperatures, whilst the cover is designed to prevent heat escaping from itself
crucible and cover
10
A widely used type of laboratory flask which features a flat bottom, a conical body, and a cylindrical neck and are suitable for heating liquids
erlenmeyer flask
11
A piece of laboratory glassware, a type of laboratory flask, used in analytical chemistry for the preparation of solutions
volumetric flask
12
A lab apparatus used to separate individual substances from a mixture using centrifugal acceleration
centrifuge
13
A convenient and necessary piece of laboratory equipment for the storage of test tubes
test tube racks
14
It is used to channel liquid or fine-grained substances into containers with a small opening
funnel
15
Also known as an eductor-jet pump ,or a filter pump. This is a device that is able to produce a vacuum by using the venturi effect
aspirator
16
Used for sterilizing lab equipments using the application of purely dry heat
dry heat oven
17
The heavy base keeps the stand stable, and the vertical metal rod allows for easy height adjustment of the iron ring/clamp
iron stand
18
a common piece of laboratory glassware consisting of a finger-like length of glass or clear plastic tubing, open at the top
test tube
19
A piece of laboratory equipment used to mix chemicals and liquids for laboratory purposes
stirring rod
20
A device that measures temperature or temperature gradient using a variety of different principles
laboratory thermometer
21
Used to cover the openings of containers such as flasks and test tubes in order to seal chemicals
rubber stoppers
22
Used to take and handle small quantities of solid chemicals
spatula
23
A laboratory tool used to transport a measured volume of liquid. It is also use to extract or deliver small amounts of liquid.
pipette
24
Holds a glassware such as a funnels or other objects, like the wire gauze or clay triangle for heating with a Bunsen burner
iron ring
25
the containers used for the centrifuge
centrifuge tube
26
A lab equipment is used to support and hold various flasks, beakers and other glass ware when not in use and also during experiments
tripod
27
Can be used as a container to hold solutions of chemicals. It is designed for uniform heating and ease of swirling
florence flask
28
A device, made with nylon bristles attached to a twisted-wire shaft, used to knock the bottoms out of test tubes
test tube brush
29
Used on substances where it applies a specific level of vibration for mixing delicate substances
vortex mixer
30
An instrument used to measure small amount of liquids, usually in milligrams
medicine dropper
31
A piece of laboratory equipment used to hold things and is placed in an iron stand to elevate other equipment
iron clamp
32
Used to submerge materials into hot water avoiding direct heat or fire
water bath
33
a simple container for stirring, mixing and heating liquids commonly used in many laboratories
beaker
34
Containers made of glass, plastic, borosilicate or related substances, and topped by special caps or stoppers and are intended to contain chemicals in liquid or powder form for laboratories and stored in cabinets or on shelves.
reagent bottle
35
An instrument used to see objects that are too small for the naked eye
microscope
36
Actype of glassware where you can observe substances while running tests on it
petri dish
37
Designed to hold test tubes. However, it can be used to hold pipettes and stirring rods, etc. as well.
test tube holder
38
An enclosure where that can apply extreme heat on a substance and is commonly used for melting metals
furnace
39
Used to dispense known amounts of a liquid reagent in experiments
burette
40
A metal rod attached to a heavy metal base
iron stand
41
A type of balance commonly used in the laboratory to determine the mass of samples
triple beam balance
42
It is a brush that is long and narrow to clean the inside of the glassware
test tube brush
43
Device for combining a flammable gas with controlled amounts of air before ignition
bunsen burner
44
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.
watch glass
45
A pipe with a wide, often conical mouth and a narrow stem
funnel
46
Used to measure mass to a high degree of precision and accuracy
analytical balance
47
Place under the container holding the liquid, that is being heated by the Bunsen burner, so that the container doesn't have direct contact with the flame.
wire gauze
48
A piece of laboratory equipment used to accurately measure the volume of a liquid
graduated cylinder
49
It holds a small experiment, which would be used to conduct an investigation
test tube