Lab Saftey

Flammable materials, like alcohol, should never be

dispensed or used near?

an open flame

If a laboratory fire erupts, immediately?

notify your instructor.

When are eye protection devices (such as goggles) worn in the laboratory?

any time chemicals, heat or glassware are used.

If you wear contact lenses in the school laboratory?

advise your science instructor that you wear

contact lenses.

If you do not understand a direction or part of a lab

procedure, you should?

. ask the instructor before proceeding.

After completing an experiment, all chemical wastes

should be?

disposed of according to your instructor's directions.

If a lab experiment is not completed, you should?

. discuss the issue with your instructor.

You are heating a substance in a test tube. Always point the open end of the tube?

away from all people.

You are heating a piece of glass and now want to pick it up. You should?

use tongs.

You have been injured in the laboratory (cut, burn,

etc.). First you should?

tell the science instructor at once.

(washing with cold running water and sending a lab partner to get me is good too!)

When gathering glassware and equipment for an

experiment, you should?

read all directions carefully to know what

equipment is necessary.

examine all glassware to check for chips or cracks.

clean any glassware that appears dirty.

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?

using a towel or cotton gloves for protection.

twisting the tubing and stopper carefully.

Personal eyeglasses provide as much protection as

nothing we have in lab.

Long hair in the laboratory must be?

tied back or kept entirely out of the way with a

hair band, hairpins, or other confining device.

In a laboratory, the following should not be worn?

A. loose clothing.

B. dangling jewelry.

C. sandals.

The following footwear is best in the laboratory?

closed

Horseplay or practical jokes in the laboratory are?

always against the rules.

If a piece of equipment is not working properly, stop,

turn it off, and tell?

the science instructor.

If an acid is splashed on your skin, wash at once with?

plenty of water.

When you finish working with chemicals, biological

specimens, and other lab substances, always?

wash your hands thoroughly with soap and

water.

Draw a diagram of your science room and label the

locations of the following:

Fire Blanket

Fire Extinguisher(s)

Exits

Eyewash Station

Emergency Shower

Closest Fire Alarm Station

Waste Disposal Container(s)

T/F Hot glass looks the same as cold glass.

TRUE

T/F All chemicals in the lab are to be considered

dangerous.

TRUE

T/F Return all unused chemicals to their original

containers.

FALSE

T/F Work areas should be kept clean and tidy.

TRUE

T/F Pipets are used to measure and dispense small

amounts of liquids. You should draw the liquid

into the pipet using your mouth.

FALSE

T/F Laboratory work can be started immediately

upon entering the laboratory even if the

instructor is not yet present.

FALSE

T/F Never remove chemicals or other equipment

from the laboratory.

TRUE

T/F Chipped or cracked glassware is okay to use.

FALSE

T/F Read all procedures thoroughly before entering

the laboratory.

TRUE

T/F All unauthorized experiments are prohibited.

TRUE

T/F You are allowed to enter the chemical

preparation/storage area any time you need to

get an item.

FALSE

T/F Laboratory aprons should be worn during all

lab activities.

TRUE, when available for use

T/F It's okay to pick up broken glass with your bare

hands as long as the glass is placed in the trash.

FALSE

T/F Never leave a lit burner unattended.

TRUE