SAFETY IN THE SCIENCE LABORATORY Miss Syiem Chemistry

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

Absolutely no horseplay in the lab!

What should you do before starting an experiment? READ instructions

When should you wear goggles? At ALL times during an experiment

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

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

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!

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

What type of shoes are appropriate during a lab? Close-toed ONLY

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

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

Report any accident or injury to the instructor immediately

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

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);

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 finished with a lab, discard solids into the trash can and liquids in the sink or as directed SOLIDLIQUID

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