WorksheetsUnit 0
Total questions: 75
Worksheet time: 45mins
Name
Class
Date
1.
Long hair in the laboratory should always be
a)
Pulled back
b)
Always neatly groomed
c)
Cut short
d)
Held away from the table with one hand
2.
You have been injured during a lab (burned, cut, etc.). First you should
a)
Visit the school nurse
b)
Apply first aid yourself
c)
Go see a doctor after school
d)
Tell the teacher
3.
When you finish working with chemicals, biological specimens, and other lab substances, always
a)
Wash your hands with soap and water
b)
Wipe your hands on a towel
c)
Treat your hands with lotion
d)
Wipe your hands on your clothes
4.
Approved eye protection devices (such as goggles) are worn in the laboratory
a)
To improve your vision
b)
To avoid eye strain
c)
Only if you don't wear corrective glasses
d)
Anytime chemicals, heat, or glassware are used
5.
If you do not understand a direction or part of a laboratory procedure, you should
a)
Skip it and go on to the next part
b)
Figure it out as you do the lab
c)
Ask the teacher before continuing
d)
Try several methods until something works
6.
After completing an experiment, all chemical wastes should be
a)
disposed of according to the teacher's directions
b)
dumped in the sink
c)
left for the next class
d)
taken home
7.
Which of the following is inappropriate to wear in the lab?
a)
Loose clothes
b)
All of these
c)
Loose jewelry/lanyard
d)
Sandals
8.
When using a new chemical in the lab, you should
a)
Taste it-YUM
b)
Take a big whiff of it
c)
Look directly into it while heating it
d)
None of these
9.
What does PASS stand for?
a)
Pull, Aim, Spray, Sweep
b)
Pull, Aim, Squeeze, Sweep
c)
Pull, Aim, Squeeze, Spray
d)
Press, Aim, Spray, Sweep
10.
Where do you point the fire extinguisher if you are putting out a fire?
a)
At the base of the fire
b)
At the top of the flames
c)
At your lab partner
d)
Toward the middle of the fire
11.
True or False: Long hair MUST be tied back during a laboratory investigation.
a)
True
b)
False
12.
True or False: The wearing of flip flops and other open toed shoes are acceptable during a laboratory investigation during the hot summer months.
a)
True
b)
False
13.
The lab equipment seen in the image should be worn during a lab investigation when...
a)
using glassware.
b)
using chemicals.
c)
using heat/fire.
d)
using any of the above.
14.
Identify the piece of lab equipment seen in the image.
a)
Erlenmeyer Flask
b)
Graduated Cylinder
c)
Beaker
d)
Test Tube
15.
Identify the primary function of the lab equipment seen in the image.
a)
Mixing liquids
b)
Measuring liquid volume
c)
Mixing solids
d)
Measuring mass
16.
Identify the primary function of the lab equipment seen in the image.
a)
Transfer small amounts of liquid
b)
Transfer large amounts of liquid
c)
Measure liquid volume
d)
Mixing liquid chemicals
17.
Identify the piece of lab equipment seen in the image.
a)
Pipets
b)
Test Tubes
c)
Forceps
d)
Scoopulas
18.
A beaker is used to measure volume in which metric unit?
a)
Milliliters (mL)
b)
Grams (g)
c)
Meters (m)
d)
Kilograms (kg)
19.
To be read accurately, one must place a graduated cylinder on a flat surface and measure at the bottom of the _______________ curve.
a)
Centrifugal
b)
Capillary
c)
Meniscus
d)
Infinity
20.
During lab, what do you do first?
a)
read all directions
b)
wash your hands
c)
gather your materials
d)
get the fire extinguisher
21.
Emergency equipment in our classroom includes:
a)
eyewash fountain
b)
safety shower
c)
fire extinguisher
d)
fire blanket
22.
Never leave ___ unattended.
a)
a dissected pig
b)
a test tube
c)
an active heat source
d)
a freshman
23.
Hot glassware (and many other lab materials) looks the same as...
a)
the sun
b)
mercury
c)
metal
d)
cold glassware
24.
Identify the equipment shown here:
a)
graduated cylinder
b)
Erlenmeyer flask
c)
beaker
d)
volumetric flask
25.
Identify the equipment shown here:
a)
beaker holder
b)
iron ring
c)
forceps
d)
test tube holder
26.
Identify the equipment shown here:
a)
acetylene torch
b)
flame thrower
c)
alcohol burner
d)
Bunsen burner
27.
Identify the equipment shown here:
a)
wire gauze
b)
flame spreader
c)
sieve
d)
mesh
28.
Identify the equipment shown here:
a)
test tube holder
b)
iron rod
c)
iron ring
d)
ring stand
29.
Identify the equipment shown here:
a)
sparker
b)
test tube holder
c)
flame snuffer
d)
utility clamp
30.
Identify the equipment shown here:
a)
beaker
b)
flask
c)
test tube
d)
graduated cylinder
31.
What is used to hold test tubes?
a)
Test tube rack
b)
Magnifying glass
c)
Petri dish
d)
Funnel
32.
Name this item
a)
Florence flask
b)
Stirring rod
c)
Test tube
d)
Test tube holder
33.
a)
hot plate
b)
electronic balance
c)
bunsen burner
d)
scales
34.
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
35.
This piece of equipment is used to mix liquids together.
a)
glass stirring rod
b)
scalpel
c)
probe
d)
test tube
36.
Name the tool pictured. It does contain measurement lines.
a)
Pipette
b)
Eye dropper
c)
Tqeezer
d)
Forceps
37.
Name this piece of equipment.
a)
glass triangle
b)
funnel
c)
stirring rod
d)
buret
38.
What is the name of this equipment?
a)
Wooden Corks
b)
Rubber Stoppers
c)
Plugs
d)
Lids
39.
It is a measure of how close measurements come to each other when they are made in the same way
a)
Accuracy
b)
Precision
c)
Error
d)
Extrapolation
40.
How close a measurement is to the accepted value is called..
a)
Accuracy
b)
Precision
c)
Significant
d)
Estimate
41.
This bullseye demonstrates...
a)
High Accuracy & High Precision
b)
High Accuracy & Low Precision
c)
Low Accuracy & High Precision
d)
Low Accuracy & Low Precision
42.
?
a)
High Accuracy & High Precision
b)
High Accuracy & Low Precision
c)
Low Accuracy & High Precision
d)
Low Accuracy & Low Precision
43.
Describe the accuracy and precision of the image
a)
Accurate and Precise
b)
Accurate and not precise
c)
Not Accurate and Precise
d)
not accurate and not precise
44.
A set of data are all close to each other, and they are close to the actual value. This set of data can be described as...
a)
accurate
b)
precise
c)
both precise and accurate
45.
Which Student is the most Precise?
a)
Alex
b)
Shandra
c)
Luis
46.
What is this tool to get volume?
a)
triple beam balance
b)
ruler
c)
thermometer
d)
graduate cylinder
47.
What is this tool to get mass?
a)
triple beam balance
b)
ruler
c)
thermometer
d)
graduate cylinder
48.
True or False: The density of a specific type of material never changes.
a)
True
b)
False
49.
Put the liquids in order from most dense to least dense?
a)
4, 3, 2, 1
b)
1, 2, 3, 4
c)
3, 4, 2, 1,
d)
4, 3, 1, 2
50.
If an object has a density of .6 g/cm^3 and you put it into water, will it sink or float?
a)
sink
b)
float
51.
If an object has a density of 3.6 g/cm^3 and you put it into water, will it sink or float?
a)
sink
b)
float
52.
What do we know about the density of lamp oil, rubbing alcohol, and vegetable oil?
a)
The density is greater than 1.0 g/mL
b)
The density is less than 1.0 g/mL
c)
The density is equal to 1.0 g/mL
d)
The density can not be determined
53.
How many significant figures does the following number have: 0.002040
a)
6
b)
4
c)
3
d)
2
54.
How many significant figures does the following number have: 2001800.
a)
1
b)
4
c)
6
d)
7
55.
How many significant figures does the following number have: 0.0079010
a)
1
b)
4
c)
5
d)
9
56.
How many significant figures does the following number have: 1740200
a)
2
b)
1
c)
3
d)
5
57.
Round 0.010229 to four sig figs
a)
1022
b)
1023
c)
0.01023
d)
0.01022
58.
Round 1009 to three sig figs
a)
100
b)
101
c)
1010
d)
1000
59.
Three different people weigh a standard mass of 2.00 g on the same balance. Each person obtains a reading of 7.32 g for the mass of the standard. These results imply that the balance that was used is ____.
a)
accurate
b)
precise
c)
accurate and precise
d)
neither accurate nor precise
60.
How many sig figs are there?
100000000
100000000
a)
1
b)
9
c)
10
61.
How many sig figs are there?
4004
4004
a)
1
b)
2
c)
3
d)
4
62.
Which of the following numbers have four significant figures?
a)
56.75 g
b)
40.01 g
c)
0.6000 g
d)
all of the choices
63.
All of the following have one significant figure except:
a)
100 cm
b)
0.0001 cm
c)
2 cm
d)
2.00 cm
64.
Which of the following numbers has three significant figures?
a)
1014 miles
b)
101 feet
c)
1000 yards
d)
all of the choices
65.
1 Meter = ______cm
a)
100
b)
10
c)
1
d)
1000
66.
1 cm = ________mm
a)
1
b)
100
c)
10
d)
1000
67.
1 L = _______ mL
a)
1
b)
10
c)
100
d)
1000
68.
100 cm = ______m
a)
1
b)
10
c)
100
d)
1000
69.
1 g = ______ mg
a)
1
b)
10
c)
100
d)
1000
70.
1000 m = _____km
a)
1
b)
10
c)
100
d)
1000
71.
A Kilogram is about the weight of a _______
a)
paper clip
b)
Text book
72.
A gram is about the weight of a _______
a)
paper clip
b)
Text book
73.
A meter is about the length of a _______
a)
baseball bat
b)
Pinky nail
74.
A liter is about the volume of a _______
a)
water bottle
b)
dropper/syringe
75.
Convert 4 m to cm
a)
40 cm
b)
400 cm
c)
0.4 cm
d)
0.04 cm
100 %
