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(8th) NOS/Lab Safety Quiz Flashcards | StudBud
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(8th) NOS/Lab Safety Quiz
(8th) NOS/Lab Safety Quiz
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8th Grade Lab Safety Quiz
Flashcards
45 cards
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Practice quiz
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Questions
45
Answers
1
The following are all features of the lab EXCEPT:
Safety Vent Hood
Safety Sinks
Fire Blanket
Safety Shower
2
Which step is not necessary in handling a fire extinguisher?
Aim
Sweep side to side
Pass the Extinguisher
Pull the Pin
3
Which is/are information gathered during experiments?
conclusions
a hypothesis
a theory
data
4
Flip flops are acceptable footwear for a lab period
True
False
5
What is the acronym to remember when using a fire extinguisher?
P.U.L.L.
P.A.S.S.
S.W.E.E.P.
F.I.R.E.
6
Scientists use this system to write or display very small or very large numbers.
Calculus
Scientific Method
Scientific Notation
Percent Error
7
What is 50,000 in scientific notation form?
0.5 x 104
5 x 1010
5.0 x 104
500 x 102
8
_________________ is the base unit used to measure
length
is:
Miles
Meters
Inches
Yards
9
A description of how close a measurement is to an accepted value is called __________________.
On Target
Precision
Closeness
Accuracy
10
What does this safety symbol stand for?
Oxidizer
Biohazard
Corrosive
Environmental Hazard
11
Which is the application of science to make tools that people can use?
control
a trial
safety
technology
12
Broken materials should be...
Disposed of in the appropriate waste bin after telling the teacher
Disposed of in any garbage can after telling the teacher
Disposed of properly and quickly.
Thrown away the appropriate waste bin before the anyone finds out about it
13
What are the three things needed for a fire?
Oxygen/Nitrogen/Spark
Fuel/Heat/Oxygen
Oxygen/Plasma/Plastic
Plastic/Oxygen/Wood
14
A scientific law explains why or how the pattern happens.
False
True
15
Charts, tables, and graphs are used to ________________ in the scientific method.
Draw a hypothesis
Create observations
Analyze data
Conclude your test
16
A scientific theory cannot be modified.
True
False
17
_________________ is the base unit used to measure
electric current
is:
Volts
Magnitude
Ampere
TJ Watts
18
Is 3,550 mm larger than 3000 meters?
Not enough information
Yes.
All of the above
No
19
What is 9.27 x 10
5
in standard form?
92,700
927,000
927,000,000
9,270
20
What is percent error?
A number of how many experiments you have to do to find the value needed.
The percentage of how big a test is.
The only number needed to represent how many tests you have done.
A percent of how far your experimental value is off of the accepted value.
21
What is 0.5 in scientific notation?
0.5 x 100
5.0 x 10-1
5.0 x 10-2
Does not exist
22
All
measurements have some degree of error, or uncertainty.
True
False
23
A description of how similar or close measurements are to each other is called __________________.
Precision
Bullseye
On Target
Accuracy
24
This item is not located in the Laboratory
Fire Extinguisher
Fire Blanket
Fire Alarm
Fire Shower
25
Which color of the NFPA sections of the diamond corresponds to the Fire Hazard?
Red
Blue
White
Yellow
26
What will be washed while labs are being conducted?
Lab Bench
Lab Materials
All of the Above
Hands
27
What two steps do you take after coming to a conclusion in the scientific method?
Share results or retest the experiment
None of the above
Start over and give up
Duplicate results and hoard the data
28
Which of the following is a method of analyzing data?
making a prediction
making a chart/graph
revising a hypothesis
stating a problem
29
Is the exponent negative or postitive when you write 0.00029 in scientific notation?
Both
I don't know
Negative
Postitive
30
Where is the NFPA Diamond located?
All of the Above
On the lab paper handouts
On Chemical Bottles
On Posters in the Lab
31
Blue is false?
True
False
32
When a scientist makes a quick guess about something, it is called a
scientific theory.
True
False
33
You use your five senses to describe something
conclusion
observation
prediction
experiment
34
How many base SI units are there?
3
8
7
120
35
An explanation of observations or events based on knowledge gained from many observations and investigations is called:
A Scientific Theory
The Scientific Method
A Scientific Law
Safety regulations
36
The internationally accepted system of measurement, used by scientists, is called: _______________
International System of Units
The United System of Units
The Scientific Method
The UN
37
What does this safety symbol stand for?
Explosive
Toxic
Biohazard
Corrosive
38
How are
predictions
used in the scientific process?
to help scientists test hypotheses
to help scientists analyze data
to help scientists formulate theories
to help scientists communicate results
39
How many liters are there in a 2 liter bottle of soda?
2
1
2.5
1.5
40
Why is communication an important part of the scientific process?
it means results do not need to be confirmed
it limits the flow of secret information
it ensures that nobody makes mistakes
it helps science progress more quickly
41
The scientific method is used in everyday life to acquire/get information.
True
False
42
A hypothesis is simply a prediction that has not yet been __________.
written about
made into a theory
results calculated
proven or disproven
43
What does this safety symbol stand for?
Oxidizer
Biohazard
Explosive material
Harmful/Irritant
44
What is science?
work in a laboratory
the process of trying to understand the world
a subject in school
the study of outer space
45
Which color of the NFPA sections of the diamond corresponds to the Instability Hazard?
Blue
Red
Yellow
White
