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Safety 7th Grade 2025

Total questions: 30

Worksheet time: 18mins

Name
Class
Date
1.
If a fire erupts, immediately
a)
A. notify the teacher.
b)
B. RUN for the fire extinguisher.
c)
C. throw water on the fire.
d)
D. open the windows
2.

When should safety goggles be worn in a science laboratory?

a)

A. Only when working with open flames.

b)

B. Whenever handling chemicals, heat, or glassware.

c)

C. Only if you wear contact lenses.

d)

D. To help you see better.

3.

If you are unsure about how to use a piece of laboratory equipment, you should

a)

A. guess and use it anyway.

b)

B. ask your teacher for instructions.

c)

C. watch others and copy them.

d)

D. avoid using the equipment.

4.
After completing an experiment, all chemical wastes should be
a)
A. left at your lab station for the next class.
b)
B. disposed of according to your teacher’s directions.
c)
C. dumped in the sink.
d)
D. taken home.
5.
You have been injured in the laboratory (cut, burned, etc.). First you should
a)
A. visit the school nurse after class.
b)
B. see a doctor after school.
c)
C. tell the teacher at once.
d)
D. apply first aid yourself.
6.
Horseplay, practical jokes, or pranks in the classroom are
a)
A. always against the rules.
b)
B. okay.
c)
C. not dangerous.
d)
D. okay if you are working alone.
7.

If you notice a chemical spill in the lab, you should immediately report it to

a)

A. the janitor.

b)

B. your classmates.

c)

C. the teacher.

d)

D. the school nurse.

8.

After handling chemicals or biological materials in the laboratory, what should you do before leaving the lab?

a)

A. Use hand sanitizer only.

b)

B. Wash your hands thoroughly with soap and water.

c)

C. Simply dry your hands with a paper towel.

d)

D. Rub your hands together to clean them.

9.
The following activity is permitted/allowed in the laboratory:
a)
A. chewing gum
b)
B. eating
c)
C. drinking
d)
D. None of the above.
10.
Before you leave the science room, you should
a)
A. clean your work area and equipment.
b)
B. return all equipment to the proper storage area.
c)
C. wash your hands with soap and water.
d)
D. All of the above.
11.
What should you do if you notice broken glass in the science lab?
a)
Leave it alone and continue with your experiment.
b)
Pick it up with your hands and throw it in the trash, it's important to keep your lab area clean even if it's not your mess.
c)
Tell the teacher, clean it up with a broom and dustpan, and place it in the broken glass container.
d)
Clean it up with a broom and dustpan, and throw away in the regular trash can.
e)
Tell the teacher.
12.

Before beginning her experiment, Lucy makes sure to wear gloves, a lab coat, and protective eyewear.

a)

Safe

b)

Unsafe

13.
Delaney was wearing flip flops and eating chips in the lab.
a)
Safe
b)
Unsafe
14.
Emily was late for her next class after science. To save time she left her mess behind for the next class to clean up and put away.
a)
Safe
b)
Unsafe
15.

During a science experiment, Maria kept removing her safety gloves because they felt too tight, and she touched her face several times with her bare hands.

a)

Safe

b)

Unsafe

16.

During a science lab, John was measuring chemicals while his friend Alex was recording the results. John wore safety goggles, but Alex did not because he was only writing down observations.

a)

Safe

b)

Unsafe

17.
Before starting the experiment Lilly made sure she had the correct attire such as goggles, closed toed shoes, gloves and no baggy clothing. She also read over the directions and made sure she had all the materials she would need.
a)
Safe
b)
Unsafe
18.
Bob wore safety glasses even though he already wears glasses.
a)
Safe
b)
Unsafe
19.
When John was done with his lab he washed his hands with soap and water before going to his next class.
a)
Safe
b)
Unsafe
20.
The dependant variable is:
a)
What is being observed or measured
b)
What is being tested or manipulated
c)
What is used for comparison and kept constant
d)
What is guessed
21.
The independent variable is:
a)
A. What is being observed or measured
b)
B. What is being tested or manipulated
c)
C. What is used for comparison and kept constant
d)
D. What is guessed
22.
The control group is:
a)
A. What is being observed or measured
b)
B. What is being tested or manipulated
c)
C. Identical to the experimental group but it does not receive the independent variable
d)
D. A variable that could be changed but does not
23.
Models are used in science when things:
a)
A. happen too quickly or slowly
b)
B. are too dangerous or expensive
c)
C. are too big or small
d)
D. all of the above
24.

Before using a chemical, what is the first thing you should do?

a)

Smell it to check its odor

b)

Read the label and safety data sheet

c)

Pour it into a beaker

d)

Mix it with water

25.
During the lab it is okay to
a)
Have a snack
b)
Drink in lab
c)
Taste chemicals
d)
None of the above
26.

What is this scientist doing wrong?

a)

smiling

b)

eating in a lab

c)

wearing glasses

27.

When working in the lab, you always...

a)

work with only members of your group with a business-like attitude

b)

ask questions when in doubt about procedures

c)

clean up after yourself 

d)

all of the above

28.
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
29.
You should never ______ chemicals in the lab. 
a)
taste
b)
touch
c)
smell
d)
all of the above
30.
Before leaving the lab you should always wash your hands.
a)
True 
b)
False

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