Science Laboratory Safety

Pencils are not used to stir chemicals because:

1. There is a danger of fire or explosion 2. The lead might contaminate your experiment

Why must all chemicals and equipment remain in the lab room?

1. it is a school rule 2. It's for your own safety 3. it's for the safety of others

The science lab is a place :

1.where you must be extra careful and be prepared for the unexpected 2. where all safety rules must be strictly followed

Any spill on the floor can cause an accident. Always clean it up A. at once B. during clean up time C. when you have time D. at the end of the period E. when someone else notices

A

Horseplay or practical jokes in the laboratory are A. always against the rules. B. okay. C. not dangerous. D. okay if you are working alone

A

If a fire erupts, immediately A. notify the teacher. B. run for the fire extinguisher. C. throw water on the fire. D. open the windows.

A

If a lab experiment is not completed, you should A. discuss the issue with your instructor. B. sneak in after school and work alone. C. come in during lunch and finish while eating lunch. D. make up some results.

A

If a laboratory fire erupts, immediately A. notify your instructor. B. run for the fire extinguisher. C. throw water on the fire. D. open the windows

A

When using a razor blade or scalpel, always cut material A. away from you. B. toward you. C. in your hand. D. perpendicular.

A

What types of accidents should you tell your teacher about?

All types of accidents

After completing an experiment, all chemical wastes should be A. left at your lab station for the next class. B. disposed of according to your instructor's directions. C. dumped in the sink. D. taken home

B

Alcohol, acetone, and other volatile materials that can burn easily should never be used near A. another person B. an open flame C. a laboratory counter D. a work table

B

Chemicals, small parts, glassware, and stirring rods are not to be A. used in the laboratory B. put in the mouth C. put on the bench D. taken from boxes

B

Flammable materials, like alcohol, should never be dispensed or used near A. an open door. B. an open flame. C. another student. D. a sink

B

Protective clothing and equipment, such as gloves and lab coats, should be removed before leaving the laboratory primarily because ___________. A. visitors may be frightened by the strange clothing B. contaminants may be transferred to persons or objects outside the lab C. one may forget to return the gear to the lab D. someone may mistake you as a doctor

B

The correct way to move about the clasroom or laboratory is to _________. A. run B. walk C. hurry D. skip

B

When heating substances in a test tube, be sure the open end of the tube points toward ________. A. yourself B. no one C. your partner D. a classmate

B

When you finish working with chemicals, biological specimens, and other lab substances, always A. treat your hands with skin lotion. B. wash your hands thoroughly with soap and water. C. wipe your hands on a towel. D. wipe your hands on your clothes.

B

When you work with laboratory chemicals that pose a splash hazard, you must always wear A. loose clothing B. safety goggles C. contact lenses D. loose jewelry

B

Whenever you are in the classroom or laboratory working on an experiment, you should wear A. sandals B. closed-toe shoes C. open-toed shoes D. no shoes

B

If you do not understand a direction or part of a lab procedure, you should A. figure it out as you do the lab. B. try several methods until something works. C. ask the instructor before proceeding. D. skip it and go on to the next part.

C

If you wear contact lenses in the school laboratory, A. take them out before starting the lab. B. you do not have to wear protective goggles. C. advise your science instructor that you wear contact lenses. D. keep the information to yourself

C

The best way to identify a chemical is to ................ A. smell it B. taste it C. read the label D. use a straw

C

The following footwear is allowed in the laboratory. A. sandals B. open-toed shoes C. closed-toed shoes D. shoes appropriate for the weather

C

Which of the following is considered to be personal protection equipment for our lab? A. spill kit B. fire blanket C. goggles D. fire extinguisher

C

You are heating a piece of glass and now want to pick it up. You should ________. A. use a rag or paper towels. B. pick up the end that looks cooler. C. use tongs. D. pour cold water on it.

C

You have been injured in the laboratory (cut, burn, etc.). First you should ___________. A. visit the school nurse after class. B. see a doctor after school. C. tell the science instructor at once. D. apply first aid yourself.

C

You should prepare for each laboratory activity by reading all instructions __________. A. after school B. while you are working C. before you start to work

C

All chemicals should be stored in _______. A. beakers B. dark brown bottles C. clear glass bottles D. properly and clearly labeled containers

D

All the floors, aisles, and passageways should be kept clear of A. electrical cords B. laboratory equipment & chemicals C. backpacks D. All of the above

D

Approved eye protection devices (such as goggles) are worn in the laboratory A. to avoid eye strain. B. to improve your vision. C. only if you don't have corrective glasses. D. any time chemicals, heat or glassware are used.

D

Before you leave the science room, you should A. clean your work area and equipment. B. return all equipment to the proper storage area. C. wash your hands with soap and water. D. All of the above

D

If a piece of equipment is not working properly, stop, turn it off, and tell A. the custodian. B. your lab partner. C. your best friend in the class. D. the science instructor

D

If an acid is splashed on your skin, wash at once with A. soap. B. oil. C. weak base. D. plenty of water.

D

In a laboratory, the following should not be worn. A. loose clothing. B. dangling jewelry. C. sandals. D. all of the above.

D

Long hair in the laboratory must be A. cut short. B. held away from the experiment with one hand. C. always neatly groomed. D. tied back or kept entirely out of the way with a hair

D

Personal eyeglasses provide as much protection as A. a face shield. B. safety glasses. C. splashproof chemical goggles. D. none of the above.

D

The following activity is permitted in the laboratory: A. chewing gum B. eating C. drinking D. None of the above.

D

When gathering glassware and equipment for an experiment, you should ___________. A. read all directions carefully to know what equipment is necessary. B. examine all glassware to check for chips or cracks. C. clean any glassware that appears dirty. D. All of the above.

D

When handling animals, students should A. open cages only with permission. B. not tease or handle animals roughly. C. report bites or scratches to the teacher immediately. D. All of the above.

D

You are heating a substance in a test tube. Always point the open end of the tube __________. A. toward yourself. B. toward your lab partner. C. toward another classmate. D. away from all people.

D

You want to place a piece of glass tubing into a rubber stopper after the tubing has been fire polished and cooled. This is best done by_____. A. lubricating the tubing with water or glycerin. B. using a towel or cotton gloves for protection. C. twisting the tubing and stopper carefully. D. all of the above.

D

True or False: It is okay to drink water from a beaker if it is clean

False

True or False: You should tell a teacher about only those accidents which involve bleeding.

False

What is the proper way to smell a chemical?

Hold the container at arm's length and fan the fumes toward you. Wafting, never close to anyone's nose or face

What does MSDS stand for?

Material Safety Data Sheet

What should you do if your teacher asks for your attention during an experiment?

Stop what you're doing and pay special attention

True or False: All science projects or individual experiments must be approved by the teacher before you begin.

True

True or False: Each student is required to wear safety goggles during lab.

True

True or False: Never point a test tube you are heating toward yourself or anyone else.

True

True or False: You may taste an unknown chemical if your teacher says it is all right to do so.

True

Notify your teacher if any spills or ______ occur.

accidents

Never play _______ in the laboratory.

around

Most accidents:

can be prevented if you make safety a habit

Wash your hands after handling ________.

chemicals

Never throw ____ in the trash. Follow the ______ when disposing any chemicals.

chemicals, instructions

Never mix ______ unless you are told to do so (and then only in the specified way).

chemicals, way

It is suggested that you wear glasses rather than _____ _____.

contact lenses

Be sure your hands and your lab area are ___ before using electrical equipment.

dry

Only glassware that is thoroughly ___ should be heated.

dry

Clean up your lab area at the ______ of the laboratory period.

end

Wear safety goggles to protect your ____ from _______, _____ material, or things that might be able to _____.

eyes, chemicals, heated, shatter

During lab work, keep your hands away from your ____.

face

Never reach across an open _____ or _____.

flame, burner

Wear protective _____ whenever using ___, _____ hazardous chemicals.

goggles, glass, heat, chemicals

Tie back long ___.

hair

After handling chemicals, always wash your ___ with ___ and water.

hands, soap

Use tongs and/or protective gloves to handle ___ objects.

hot

Listen to or read ______ carefully before attempting to do anything.

instructions

Unplug all electric equipment at the end of the ___ by pulling ____, not the cord.

lab, plug

Know the ______ of the fire extinguisher, fire blanket, eyewash station, and first aid kit.

location

Never put anything into your ____ during a lab experiment.

mouth

Keep your work area _______. Take to the lab station only what is _______.

neat, necessary

Never poke anything into electric _______.

outlets

Broken glass _____ __ be disposed of in a class trashcan. Use glass ______ containers

should not, disposal

Roll up loose _____.

sleeves

If you need to ____ a chemical, ___ the fumes toward your nose with one hand. Never _____ the fumes directly.

smell, wave, inhale

Never ____ any chemicals (you should also never ____ or ____ in the lab).

taste, eat, drink

Let hot items cool down before _____ them. Test warmth by bringing the ____ of your hand close to them.

touching, back

Chipped or cracked glassware should not be ___ or cleaned up _____. Tell the _______.

used, yourself, teacher

Do not place hot glassware in ____. Rapid cooling may make it ______.

water, shatter