SAFETY IN THE SCIENCE LABORATORY

Miss SyiemChemistry

Ultimate Lab Safety

A short storyhttps://www.youtube.com/watch?

v=cr7roogzM8c

General Guidelines

• Conduct yourself in a responsible manner;

Read instructions before starting experiments

Follow all instructions carefully

Goggles must be worn AT ALL TIMES when directed

NO

YES

Perform only those experiments authorized

by the instructor

Dress properly during a lab

–Tie long hair back–No dangling jewelry–No loose, baggy clothing

No sandals (shoes should completely cover top of

foot)

• Wear lab aprons

Never handle broken glass with your bare

hands–Use a dust pan and brush–Place broken glass in glass

disposal container

• Absolutely no horseplay in the lab!

Equipment

Keep work areas clean and tidy;

Keep aisles clear

Know the locations and operating procedures of all

safety equipment

Safety Shower

Eyewash station

Fire blanket

• Fire extinguisher

• Dispose of all chemical waste properly, according to instructions;

• Clean equipment and work area after use;

• Return all materials to proper location

• Never use chipped, cracked or dirty glassware;

• Never leave a lit burner unattended;

• When heating a substance in a test tube, never point the mouth of the test tube at yourself or others;

• Never look down into a container that is being heated;

• Be careful – hot glass doesn’t look hot!

CHEMICALS

Do not eat food,drink beverages or chew gum

in the lab

Keep hands away from face, eyes and mouth while using

chemicals

• Wash hands thoroughly before leaving lab

If a chemical splashes on your skin, immediately flush with running water and notify

instructor

• If you spill an acid, use a weak base to neutralize it

• If you spill a base, use a weak acid to neutralize it

• All flammable materials need to be stored in a metal container with a lid

When checking a chemical for odors, gently waft vapors

towards nose

NO YES

• Double check labels on chemical bottles

• Never return unused chemicals to their original containers (stock bottles);

When finished with a lab, discard solids into the trash can and liquids

in the sink or as directed

SOLID LIQUID

Report any accident or injury to the instructor

immediately

Should you taste lab substances?

• NO• Only when instructed

What should you do with extra lab substances?

• Discard them in the proper receptacles

ALWAYS CLEAN UP AFTER YOURSELF!!!!!

Let’s Review…

• If you answer the question correctly, you are excused from the homework

• Who will be the lucky people today?

When should you wear safety goggles?

• AT ALL TIMES when you are doing a lab

• From when you collect materials until you finish the lab

What is the proper way to smell substances during a

lab?• Fan the vapor toward yourself• Do NOT put your face over the

container

What can you use if there is a fire? Where is it located?

• Fire blanket or fire extinguisher• Fire blanket – at the back of the room• Fire extinguisher – near the entry door

Can you taste or smell lab materials?

• Only when directed to do so

Where should you discard solid lab materials?

Liquids?• Solids – into waste buckets or as

directed by teacher; NEVER in sinks• Liquids – emptied into sinks or special

wate containers

THE END

• Lab safety contract due FRIDAY• You will NOT do any labs until it is

signed and received

Safety Contract

Lab Safety Posters• With your shoulder partner, create a

poster about lab safety rules• Rewrite the rule in your OWN words• Decorate with pictures and color

Tbl 1: #1-3 Tbl 4: #10-12 Tbl 7: #3-5Tbl 2: #4-6 Tbl 5: #13-15 Tbl 8: #6-8Tbl 3: #7-9 Tbl 6: #1-3

Lab Safety Review!

• You will have 30 seconds to answer the question

• Write the answer on the whiteboard then keep it face down until time is up

• ALL whiteboards MUST be up IMMEDIATELY for you to get points for the question

• You may use notes/safety rules

Where should you store your books and backpacks?• In the cubbies next to your chairs

If someone’s clothes catch on fire, what piece of safety equipment should you use?• The fire blanket

What type of shoes are appropriate during a lab?

• Close-toed ONLY

When diluting an acid, should you pour acid into the water or water into the

acid?• Pour acid into the water

If a piece of equipment is not working right, what

should you do?• Tell the teacher

Name 2 pieces of safety equipment in the classroom• Emergency eyewash• Emergency shower• Fire blanket• Fire extinguisher

If you spill a BASE, what should you use to neutralize

it?• A weak acid (such as vinegar)

Where should towels with flammable liquids be

stored?• A metal or ceramic container with a lid

What should you do with loose clothes or jewelry

during a lab?• Remove jewelry• Wear clothes that are not baggy

When should you wear safety goggles?

• When using glassware, heat or chemicals

• AT ALL TIMES when you are doing a lab

• From when you collect materials until you finish the lab

What is the proper way to smell substances during a

lab?• Fan the vapor toward yourself• Do NOT put your face over the

container

What can you use if there is a fire? Where is it located?

• Fire blanket or fire extinguisher• Fire blanket – at the back of the room• Fire extinguisher – near the entry door

Can you taste or smell lab materials?

• Only when directed to do so

Where should you discard solid lab materials?

Liquids?• Solids – into waste buckets or as

directed by teacher; NEVER in sinks• Liquids – emptied into sinks or special

wate containers

Lab Safety Test

• Do NOT write on the test• Use answer sheet• When finished, do word search on the

back

Grading Lab Safety Test

• Use a crayon from the box• Put an X or slash if incorrect• Write “Corrected by” and the bottom/side• Write the number correct at the top

Anybody miss more than 10? See me right now!