Worksheets1st MP Practice Exam
Total questions: 61
Worksheet time: 1hrs 25mins
What do you wear to protect your eyes in lab?
safety goggles
safety glasses
a gas mask
a full hazmat suit
which of these options contain elements of proper lab attire?
-loose long hair
-closed toed shoes
-shorts
-long hair tied up
-open toed shoes
-pants
-long hair tied up
-closed toed shoes
-pants
-coming as you come to school on a regular basis
What do you do if a chemical spills on you?
Notify the teacher and wait for a reaction
Clean up the spill so the teacher does not notice
Notify the teacher and call home
Notify the teacher and rinse off the spill
What do you do if you break glass?
Notify the teacher
Clean up and notify the teacher
Clean up before the teacher notices
What do you do if there is a fire?
Run out of the lab
calmly walk out of lab
Notify the teacher
grab a fire extinguisher
what do you do if you catch on fire?
notify the teacher
run to the emergency shower
grab the fire blanket
stop, drop, and roll
Why do we pour chemicals from a large container on to a small one?
hot and cool glass look the same
True
False
how should you pick up hot glass?
using gloves
with tongs
wait until it cools
with your bare hands
when you are handling hot objects you should...
-never look into it
-point the end of a test tube at others
-heat in a closed container
-look into it
-never point the end of a test tube at others
-never heat in a closed container
-look into it
-point the end of a test tube at others
-heat in a closed container
-never look into it
-never point the end of a test tube at others
-never heat in a closed container
What is the name of this type of chemical lable
MSDS
Hazard label
Precautionary label
Chemical label
What does the blue part of the MSDS tell you?
Specific Hazard
Reactivity
Fire Hazard
Health Hazard
What does the yellow part of the MSDS tell you?
Specific Hazard
Reactivity
Fire Hazard
Health Hazard
What is a GHS chemical label able to tell you?
What does this pictogram tell you?
Flammable
Corrosive
Health Hazard
Deadly
What does this pictogram tell you?
Flammable
Exploding Bomb
Corrosive
Deadly
What does this pictogram tell you?
Flammable
Gas Cylinder
Corrosive
Deadly
What does this pictogram tell you?
Flammable
Gas Cylinder
Health Hazard
Deadly
What are the main routes entry for a toxic substance?
Absorption
Injection
Ingestion
Inhalation
Observation
Ingestion
Inhalation
Disposal
Absorption
Injection
Collection
Inhalation
Observation
Ingestion
Collection
Disposal
What is the First step in the scientific method?
Hypothesis
Procedure
Interpretation
Problem/Question
What is the objective of a Procedure?
To mix Chemicals
To demonstrate chemical abilities
To test the hypothesis
To test the Problem
What should you record from your observations?
Anything I feel like recording
Anything the teacher tells me to record
Anything that is causing/is causing changes
Only chemical changes observed
What are the components of the scientific method in order?
Factors that have an effect on an experiment.
Hypothesis
Experiement
Variables
Constants
Variables that are not changed
Constants
Independent variables
Dependent variables
Experiment
The variable that is being observed which changes in response to the _________ variable. The variable you measure in the experiment.
Constants
Independent Variable
Dependent Variable
Variables
Variables that you purposely change?
Variables
Constants
Independent Variables
Dependent Variables
The sentence below describes a step of the scientific method. Match the sentence with a step of the scientific method.
"Stephen predicted that seeds would start to grow faster if an electric current traveled through the soil in which they were planted."
recognize Problem
test the hypothesis with an Experiment
form a Hypothesis
draw Conclusion
The sentence below describes a step of the scientific method. Match the sentence with a step of the scientific method.
"Susan said, “If I fertilize my geranium plants, they will blossom.”
recognize Problem
test the hypothesis with an Experiment
form a Hypothesis
draw Conclusion
The sentence below describes a step of the scientific method. Match the sentence with a step of the scientific method.
"Jonathan’s data showed that household cockroaches moved away from raw cucumber slices."
recognize Problem
test the hypothesis with an Experiment
form a Hypothesis
draw Conclusion
The sentence below describes a step of the scientific method. Match the sentence with a step of the scientific method.
"Kathy used a survey to determine how many of her classmates were left-handed and how many were right-handed."
recognize Problem
test the hypothesis with an Experiment
form a Hypothesis
draw Conclusion
The sentence below describes a step of the scientific method. Match the sentence with a step of the scientific method.
"Justin wondered if dyes could be taken out of plant leaves, flowers, and stems."
recognize Problem
test the hypothesis with an Experiment
form a Hypothesis
draw Conclusion
What is Accuracy?
measurements being close to each other
measurements being close to a specific value
What is Precise?
measurements being close to each other
measurements being close to a specific value
What does the Non-zero rule tell us?
What does the Leading zero rule tell us?
Zeros at the beginning of our measurement are significant when there is a decimal
Zeros at the beginning of our measurement are only significant after the decimal
Zeros at the beginning of our measurements are never significant
When are Trapped zeros Significant?
Always
Never
Only when there is a decimal
Only if the number is greater than 1
What does a Trailing zero need to be significant
Zeros need to be at the end of the measurement
Zeros need to be at the end of the measurement and have a decimal
Any zero counts as a trailing zero
zeros just need to exist
What is the estimated digit for this measurement: 205.007 Gl
5
0
2
7
What is an estimated digit?
The last digit in a measurement
The last significant figure in a measurement
The last digit before the decimal
The last significant figure before the decimal
How many significant figures does this measurement have: 0.0007486 mg
7
8
4
2
How many significant figures does this measurement have: 200000 mi.
1
2
4
6
How many significant figures does this measurement have: 700006 nl.
1
2
4
6
When doing addition or subtraction, how do you determine the amount of significant figures needed in your answer?
it will be the same amount of Sig Figs as my least precise measurement
it will be the same amount of Sig Figs as my most precise measurement
it will be the same amount of decimals as my least precise measurement
it will be the same amount of decimals as my most precise measurement
When doing multiplication or division, how do you determine the amount of significant figures needed in your answer?
it will be the same amount of Sig Figs as my least precise measurement
it will be the same amount of Sig Figs as my most precise measurement
it will be the same amount of decimals as my least precise measurement
it will be the same amount of decimals as my most precise measurement
42.45 m + 18 m
60.45 m
60.5 m
60. m
60 m
0.0054 g + 0.02 g =
0.0245 g
0.025 g
0.03 g
0.030 g
12.2144 m - 0.4 m =
11.8 m
11.81 m
11.814 m
11.8144 m
0.0404 cm x 250 cm =
10.1000 cm
10.100 cm
10.1 cm
10. cm
4500.0 cg x 8.00 cg
36000
36000.0
3.60x10^4
3.60x10^-4
600.0 mi / 60.0 mi =
10.00 mi
10.0 mi
10 mi
1x10^1 mi
