PreAP Chem Unit 1
When in the laboratory you should wear
closed-toed shoes
keep your hair, clothing, and other ____ materials away from the flame
combustible
Disturbing other students while they are working in the laboratory is
dangerous
Helping to clean up the laboratory or classroom is the job of
each student
In case of fire in the laboratory, notify the teacher at once and then prepare to
evacuate the building
To prevent accidents during laboratory activities , you should
follow directions
Any activity that involves poisonous vapors must be carried out in a(n) __ hood.
fume
To be able to put out a fire safely, you should know
how to use extinguisher, where the extinguisher is located, how to use a fire blanket
Carefully follow all __, both written and oral.
instructions
When you use the laboratory, you should give the procedure all of your
interest, attention, and effort
When you work in the laboratory long hair must be
kept out of the way
All floors and aisle should be kept clear of
lab equipment and chemicals
avoid apparel that presents safety hazards such as ______ garments and _____ jewelry
loose, dangling
When heating substances in a test tube, be sure the open end points toward
no other person
Chemicals, small parts, and stirring rods are not to be
put in your mouth
Always read and double check the label on a(n) __ bottle before removing anything from it, and never __ unused material to the bottle.
reagent, return
The most important thing in laboratory experiments is
safety
If you are hurt (cut, burned, etc.) tell the
teacher at once
Never heat a test tube
that is closed
To put out a fire in a person's hair or clothes, use
the fire blanket
If you see a fire in an apparatus, or a burning liquid, it is best to put it out with
the fire extinguisher
Laboratory aprons are for
the protection of you and your clothing
If you think there is something wrong with a piece of equipment, stop, turn it off and tell
the teacher
Never __ any substance unless you are specifically instructed to do so by your teacher.
touch
When smelling a liquid
waft it toward you
The correct way to move around the laboratory is to
walk
If acid gets on your skin or clothes, wash at once with
water
You must wear your goggles in the laboratory
when instructed to do so
Before you touch an electric plug, switch, or outlet
your hands should be dry
What color on the NFPA diamond represents health?
Blue
What is the first thing you should do to with a small spill?
Contain the spill with absorbent or paper towels
What is the responsibility of the professor or Principal Investigator?
Ensure that all safety equipment is available for use and working properly. Conduct periodic inspections of laboratories that use chemicals. Conduct periodic safety training of research staff.
What is the minimum personal protective equipment that must be used when handling chemicals in a laboratory?
Safety glasses, Lab coat, and Gloves
What should you immediately do if you splatter a hazardous chemical on you?
Use the Emergency Shower to promptly wash off the chemical
Which of the following would protect you from chemicals that can become airborne when used?
Use the chemical in a fume hood Wear a respirator when working with the chemical Ensure there is plenty of ventilation in the laboratory
What information can be found on the Material Safety Data Sheet (MSDS)?
a. The hazardous ingredients of the chemical. b. The hazardous characteristics of the chemical. c. Exposure control for the chemical.
If you are directed to mix an acid and water, always be sure to add the __ to the __, never the reverse.
acid, water
Playing in the laboratory or bothering another person is
always against the rules
Wear safety goggles and a lab __ at all times.
apron
If you are not sure what to do
ask the teacher
Any spill on the floor can cause an accident. Always clean it up
at once
If you break a piece of glassware or other equipment, tell the teacher
at once
If you see something in the classroom or laboratory that is dangerous, tell the teacher
at once
Make sure equipment is clean
before and after you use it
You should prepare for each laboratory activity by reading all the instructions
before you start
What would be an acute health effect?
burns and blisters on the skin vomiting and nausea
In the event of an emergency what number should you call?
911
When transferring liquid nitrogen to a transport container, you should be wearing the follow.
A face shield and safety glasses Insulated gloves A lab coat
The following statements is true about eyewash stations.
Always keep access to the eyewash station open in the event of an accident Routinely check the eyewash station for operability Hold eyes open to ensure they are cleansed of the chemical
Where are chemicals to be stored with a flammability of 3 or 4?
In an acid storage cabinet
Exposure to a gas, vapors or dust in the air would be an example of which of the following?
Inhalation
Regarding fire safety, you should always do the following.
Know where the fire exits are located in advanced in the event of a fire. Ensure that when you exit the lab that everybody is out If you are not comfortable using a fire extinguisher, just exit the lab
How would you protect yourself from accidentally ingesting chemicals?
Not eating or drinking in the laboratory Do not touch your face with your gloved hand Remove gloves and wash hands prior to leaving the lab
What should you check for before using a fume hood?
Operability of the fume hood That it was certified for use within the last year Sash height
What does white represent on the NFPA diamond?
Special Hazards
Who is required to provide MSDS's upon request?
The employer The manufacturer or distributor