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WorksheetsUnit 1 - Lab Equipment, Procedures, and Safety
Total questions: 98
Worksheet time: 55mins
Name
Class
Date
1.
If a laboratory fire erupts, immediately
a)
notify your instructor
b)
run for the fire extinguisher
c)
throw water on the fire
d)
open the windows
2.
Approved eye protection devices (such as goggles) are worn in the laboratory
a)
to avoid eye strain
b)
to improve your vision
c)
only if you don’t have corrective glasses
d)
any time chemicals, heat or glassware are used
3.
If you do not understand a direction or part of a lab procedure, you should
a)
skip it and go on to the next part.
b)
ask the instructor before proceeding
c)
try several methods until something works
d)
figure it out as you do the lab
4.
After completing an experiment, all chemical wastes should be
a)
taken home
b)
dumped in the sink
c)
disposed of according to your instructor’s directions
d)
left at your lab station for the next class
5.
You are heating a substance in a test tube. Always point the open end of the tube
a)
away from all people
b)
toward another classmate
c)
toward your lab partner
d)
toward yourself
6.
You are heating a piece of glass and now want to pick it up. You should
a)
pour cold water on it
b)
use tongs
c)
pick up the end that looks cooler
d)
use a rag or paper towels
7.
You have been injured in the laboratory (cut, burn, etc.). First you should
a)
apply first aid yourself
b)
tell the science instructor at once
c)
see a doctor after school
d)
visit the school nurse after class
8.
Long hair in the laboratory must be
a)
tied back or kept entirely out of the way with a hair band, hairpins, or other confining device
b)
always neatly groomed
c)
held away from the experiment with one hand
d)
cut short
9.
In a laboratory, the following should not be worn.
a)
all of the answers
b)
dangling jewelry
c)
sandals
d)
loose clothing
10.
The following footwear is best in the laboratory.
a)
shoes appropriate for the weather
b)
open-toed shoes
c)
closed-toed shoes
d)
sandals
11.
Horseplay or practical jokes in the laboratory are
a)
okay if you are working alone
b)
not dangerous
c)
okay
d)
always against the rules
12.
If a piece of equipment is not working properly, stop, turn it off, and tell
a)
the science instructor
b)
your best friend in the class
c)
the custodian
d)
your lab partner
13.
When you finish working with chemicals, biological specimens, and other lab substances, always
a)
wipe your hands on your clothes
b)
wipe your hands on a towel
c)
wash your hands thoroughly with soap and water
d)
treat your hands with skin lotion
14.
Hot glass looks the same as cold glass.
a)
True
b)
False
15.
All chemicals in the lab are to be considered dangerous
a)
True
b)
False
16.
Work areas should be kept clean and tidy
a)
True
b)
False
17.
Laboratory work can be started immediately upon entering the laboratory even if the instructor is not yet present
a)
True
b)
False
18.
Never remove chemicals or other equipment from the laboratory.
a)
True
b)
False
19.
Chipped or cracked glassware is okay to use.
a)
True
b)
False
20.
Read all procedures thoroughly before entering the laboratory
a)
True
b)
False
21.
Laboratory aprons should be worn during all lab activities.
a)
True
b)
False
22.
When is it OK to eat or drink at the lab tables?
a)
Always
b)
During group work, but not during lab activities
c)
Never
d)
During lab activities
23.
When should you use the shower in the back corner of the lab?
a)
After P.E.
b)
After spilling chemicals onto your body
c)
Before going out on a date
d)
Never
24.
How should you carry heavy lab equipment?
a)
With one hand
b)
With two hands
c)
With four hands (use a partner)
d)
You shouldn't; the teacher carries all lab equipment
25.
Part of lab safety includes reading the lab procedure...
a)
before doing the lab
b)
while doing the lab
c)
after doing the lab
d)
only if you think you really need it
26.
When should safety goggles be worn?
a)
at all times in the lab
b)
when you feel like it
c)
when liquids could splash into your eyes OR when using glassware
27.
When in the lab...
a)
long sleeves and loose clothing should be rolled up
b)
closed toe shoes should be worn
c)
long hair should be pulled back
d)
all of the above
28.
Before leaving the lab you should always wash or sanitize your hands.
a)
True
b)
False
29.
It's fine to smell chemicals directly from their containers.
a)
True
b)
False
30.
I must follow all instructions, written and verbal, about the laboratory procedures given by the teacher.
a)
True
b)
False
31.
Accuracy is defined as
a)
close repeated measurements
b)
awesome measurements
c)
really good guessing
d)
measurement near the true value
32.
This bullseye demonstrates...
a)
High Accuracy & High Precision
b)
High Accuracy & Low Precision
c)
Low Accuracy & High Precision
d)
Low Accuracy & Low Precision
33.
Romy's measurements: 6.02 m, 6. 04 m, 6.03 m
Actual Value: 6.02 m
How would you define her measurements?
Actual Value: 6.02 m
How would you define her measurements?
a)
accurate and precise
b)
accurate
c)
precise
d)
neither
34.
volume?
a)
48 mL
b)
48.2 mL
c)
48.25 mL
d)
4 mL
35.
Measurements that are repeated and close to each other can be defined as:
a)
accurate
b)
accurate and precise
c)
precise
d)
estimated
36.
How many meters are in 10 kilometers?
a)
1
b)
10
c)
10000
d)
1000
37.
a)
beaker
b)
flask
c)
graduated cylinder
d)
test tube
38.
a)
smock
b)
apron
c)
cover up
d)
goggles
39.
a)
hot plate
b)
flame thrower
c)
heater
d)
bunsen burner
40.
a)
buret
b)
disposable pipette
c)
dropper
d)
thermometer
41.
a)
hot plate
b)
triple beam balance
c)
buret
d)
electronic balance
42.
a)
Erlenmeyer flask
b)
Volumetric flask
c)
beaker
d)
graduated flask
43.
a)
glass triangle
b)
funnel
c)
stirring rod
d)
buret
44.
a)
shades
b)
super goggles
c)
face mask
d)
safety glasses
45.
a)
buret
b)
erlenmeyer flask
c)
graduated cylinder
d)
beaker
46.
a)
hot plate
b)
electronic balance
c)
bunsen burner
d)
scales
47.
a)
ring stand
b)
utility clamp
c)
buret clamp
d)
iron ring
48.
a)
spatula
b)
scouper
c)
thermometer
d)
tweezers
49.
a)
ignition tubes
b)
test tubes
c)
graduated cylinders
d)
burets
50.
a)
test tube rack
b)
test tube holder
c)
wire holder
d)
utility clamp
51.
a)
wire mesh
b)
wire gauze
c)
wire fence
d)
hot mitt
52.
a)
water squirter
b)
wash bottle
c)
volumetric flask
d)
erlenmeyer flask
53.
a)
test tube holder
b)
test tube rack
c)
test tube tray
d)
test tube dryer
54.
What temperature does the thermometer show?
a)
31° C
b)
35° C
c)
32° C
d)
39° C
55.
What is measured with a graduated cylinder?
a)
Passage of time
b)
Distance from one thing to another
c)
Weight of an object
d)
Volume of liquid
56.
What is special about graduated cylinders?
a)
They hold large quantities of liquid safely
b)
They measure small amounts very accurately. We use them when precision is important.
c)
They allow us to examine the liquid, we use them when looking for suspended solids.
d)
They are easily heated. We use graduated cylinders to heat liquids
57.
What is this?
a)
Measuring tube
b)
Test tube
c)
Graduated Cylinder
d)
Pipette
58.
Where is the number 7?
a)
7 is not marked. We know that 7 is between 6 and 8, so I infer that it is the longer line between 6 and 8
b)
We don't know where 7 is. It might be above 8 or below 6
c)
This cylinder cannot measure 7 because the marking is not there
d)
7 is not an important number so it was left off of this piece of lab glassware
59.
How many spaces are there between 20 and 25?
a)
4
b)
10
c)
8
d)
23
60.
Where do we read the level of liquid?
a)
The highest point the liquid touches
b)
The bottom of the meniscus
c)
Half way between, we make an educated guess and round it
d)
Somewhere about there
61.
There are 5 graduations between 6 and 7. That means that each graduation has a value of .2
What is the value shown?
What is the value shown?
a)
6 ml
b)
6.3 ml
c)
6.6 ml
d)
7 ml
62.
This is a
a)
stirring rod
b)
test tube
c)
spatula
d)
thermometer
63.
What do you do if there is a fire in the laboratory?
a)
try to put it out
b)
ignore it
c)
tell the teacher
d)
evacuate
64.
a)
Bunsen burner
b)
Firemaker
c)
Stove
d)
Heatproof mat
65.
a)
Tongs
b)
Spatula
c)
Test tube holder
d)
C
66.
a)
Evaporating dish
b)
Watchglass
c)
Glass dish
d)
Lens
67.
Holds objective lenses; Rotatates to change objectives
a)
Arm
b)
Base
c)
Revolving Nosepiece
d)
Diaphragm
68.
Hold the slide in place on the stage
a)
Stage
b)
Stage Clips
c)
Aperature
d)
Light Source
69.
Moves the stage slightly to sharpen the image
a)
Body Tube
b)
Course Focus Knob
c)
Aperature
d)
Fine Focus Knob
70.
Regulates the amount of light on the specimen
a)
Diaphragm
b)
Aperature
c)
Ocular Lens
d)
Objective Lenses
71.
Long tube; holds ocular lens and revolving nosepiece
a)
Base
b)
Arm
c)
Diaphragm
d)
Body Tube
72.
Handle used to support the microscope when carried
a)
Base
b)
Revolving Nosepiece
c)
Light Source
d)
Arm
73.
Supports the microscope and located at the bottom
a)
Base
b)
Arm
c)
Body Tube
d)
Stage
74.
Lenses consist of low 4X, medium 10X, and high 40X
a)
Eyepiece
b)
Ocular Lens
c)
Objective Lenses
d)
Illuminators
75.
Place where slide is placed on while being viewed
a)
Base
b)
Stage Clips
c)
Diaphragm
d)
Stage
76.
Moves stage up and down for focusing; large amounts
a)
Fine Focus Knob
b)
Large Focus Knob
c)
Course Focus Knob
d)
Small Focus Knob
77.
What will be the total magnification if the ocular lens is 10X and the objective lens is 40X?
a)
40X
b)
10X
c)
100X
d)
400X
78.
Number 10
a)
Stage
b)
Stage Clips
c)
Diaphragm
d)
Base
79.
Piece 7
a)
Ocular Lens
b)
Objective Lens
c)
Base
d)
Arm
80.
Number 3
a)
Ocular Lens
b)
Objective Lens
c)
Diaphragm
d)
Base
81.
Number 8
a)
Base
b)
Stage
c)
Tube
d)
Arm
82.
Number 4
a)
Stages
b)
Arms
c)
Stage Clips
d)
Ocular Lens
83.
Number 13
a)
Arm
b)
Light
c)
Base
d)
Stand
84.
Name the knob you use first.
a)
coarse
b)
fine
85.
What is the function of stage clips?
a)
To move the objectives
b)
To keep the slide secure
c)
To adjust the focus
d)
To look through
86.
You should always carry the microscope by the
a)
arm and base
b)
arm and body tube
c)
arm only
87.
What piece of lab equipment is pictured?
a)
beaker
b)
test tube
c)
erlenmeyer flask
d)
glass beaker
88.
What kind of hazard does this symbol indicate?
a)
poison
b)
caustic
c)
electrical
d)
biohazard
89.
What hazard does this symbol indicate?
a)
flammable
b)
electrical
c)
poison
d)
caustic
90.
While performing lab using acids and bases you accidentally splash acid all over your face. What piece of safety equipment should you use immediately?
a)
fire blanket
b)
fire extinguisher
c)
eye wash station
d)
safety shower
91.
What should you do if you break glass in the lab?
a)
Tell the teacher.
b)
Sweep up the glass.
c)
Pick up the glass with your hands.
d)
Ignore it; the teacher will clean it up when she sees it later.
92.
What do you do after chemicals got in your eye.
a)
Run and scream to the hospital.
b)
Wash your eyes out in eye station for 15 minutes
c)
Ignore it.
d)
Tell a teacher.
93.
what do you do when glass breaks?
a)
tell teacher amediatly.
b)
pick it up with bear hands
c)
leave it their.
d)
Step on it.
94.
You should hold the specimen securely in your hands as you cut on it.
a)
True
b)
False
95.
If you get a tiny cut, you should
a)
walk it off
b)
cry like a baby
c)
wipe blood on your partner
d)
tell the teacher
96.
Which should not be used to measure the volume of a liquid?
a)
beaker
b)
graduated cylinder
c)
syringe
d)
pipette
97.
The amount of matter in an object is__________?
a)
weight
b)
mass
c)
volume
d)
density
98.
P.A.S.S. refers to what?
a)
What I am going to do on this test.
b)
What I am NOT going to do on this test.
c)
How to use a fire extinguisher.
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