Labratory Safety

Test Tubes and Beakers

100

If you develop a headache in the labratory, you should A) take an asprin B) tell the science instructor C) Tell your neighbor D) Grin and bear it

B) tell the science instructor

200

You are heating a substance in a test tube. Always point the open end of the tube... A) towards yourself B) towards your lab partner C) towards another classmate D) towards no other person

D) towards no other person

300

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

D) all the above

400

Hot glass looks the same as cold glass A) True B) False

A) True

500

Pipettes are used to measure and dispense small amounts of liquids. You should draw the liquid into the piper by using... A) a rubber suction bulb B) a pipet pump C) your mouth D) Both A and B

D) Both A and B

Acids and Bases

100

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 different methods until something works C) ask the instructor before proceeding D) skip it and go on to the next part

C) ask the instructor before proceeding

200

After completing an assignment, 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) disposed of according to your instructor's directions

300

Spilled acids should be neutralized with... A) paper towels B) water C) alcohol D) sodium bicarbonate solution

D) sodium bicarbonate solution

400

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

D) plenty of water

500

If a techer tells you to smell a chemical, how would you do it? A) hold it directly under your nose and inhale deeply B) put a drop on your finger and hold it beneath your nostril C) wave or waft the fumes toward your face and take short sniffs D) rub a littleof the chemical above your upper lip

C) wave or waft the fumes toward your face and take short sniffs

Goggles and Aprons

100

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

D) any time chemicals, heat, or glassware are used

200

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

C) advise your science instructor that you wear contacts

300

Eyeglasses provide as much protection as... A) a face shield B) safety goggles C) splashproof goggles D) none of the above

D) none of the above

400

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

C) closed shoes

500

You find a bottle of chemicals in your labratory work area that is missing a label. You should... A) pour the contents of the bottle down the drain B) give the bottle to your science teacher C) Try to find another bottle of the same shape and color that is labeled and assume the unknown bottle contains the same chemical and the same concentration for your use D) try to identify the chemical by smelling or tasting it

B) give the bottle to your science teacher

Fume Hoods and First Aide

100

Flammable materials, like alcohol, should never be dispensed near..... A) An open door B) An open flame C) Another student D) A sink

B) An open flame

200

Paper towels or rags with flammable liquids or solid chemicals on them must be put in... A) the nearest trashcan B) a cardboard box C) a wastepaper basket D) a designed chemical waste container with a lid

D) a designed chemical waste container with a lid

300

How do chemicals enter the body...(choose all that apply) A) inhalation B) ingestion C) injection D) absorption E) None of the above

A) inhalation B) ingestion D) absorption

400

All labratory floors, asiles, and passageways should be kept clear of... A) instuctors and students B) lab equipment and chemicals C) lab equipment only D) Chemicals only

B) lab equipment and chemicals

500

Daily Double

1) Use the back of your hand 2) Tap it with your index finger

Alarms and Extinguishers

100

To extinguish a labratory fire, you should know... A) How to operate a fire extinguisher B) Where extinguishers are located C)Who is responsible for using the extinguishers D) All of the above

D) All of the above

200

If a labratory fire erupts, notify your instructor at once and then... A) Follow the instructor's direction B) Run for the fire extinguisher C) Throw water on the fire D) Open the window

A) Follow the instructor's direction

300

You want to place a piece of glass tubing into a rubber stopper after it 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) all of the above

400

The person sitting next to you is getting an electric, you should... A) alert your science teacher B) grab and pull him or her away from the shock area C) pour water on the victim D) alert the principal

A) alert your science teacher

500

Where are the fire extinguishers in our lab located... A) in the center of the lab, since that is where fires will probably occur B) by the doors, so a safe exit can be made after using the extinguishers C) next to the fume hoods, because volatile chemicals are dispensed there D) in a random fashion throughout the lab

B) by the doors, so a safe exit can be made after using the extinguishers