LAB SAFETY RULESLAB SAFETY RULES

Everyone is Responsible!Everyone is Responsible!

““I didn’t mean to”I didn’t mean to”“It wasn’t my fault”“It wasn’t my fault”

• No place for these statements in No place for these statements in the lab!the lab!

The Main Threat to The Main Threat to Safety…Safety…

• Lack of preparationLack of preparation

• Lapse of common senseLapse of common sense

NO HORSEPLAY!NO HORSEPLAY!

• If it occurs…If it occurs…– Immediate removal from the labImmediate removal from the lab

– A grade of zeroA grade of zero

– Parental notificationParental notification

Definitely Not Allowed

Inform the teacher of Inform the teacher of anyany accident accident

• SpillsSpills

• Broken glassBroken glass

• Cuts, scrapes, or any injuries Cuts, scrapes, or any injuries

Read Instructions!Read Instructions!

• Always read the directions Always read the directions completely through to the end completely through to the end beforebefore beginning an experiment beginning an experiment or lab procedureor lab procedure

Follow Instructions!Follow Instructions!

• Perform only activities that are Perform only activities that are called for in the lab instructionscalled for in the lab instructions

No unauthorized No unauthorized experiments!experiments!

• If you have an idea, talk to the If you have an idea, talk to the teacherteacher

Safety EquipmentSafety Equipment

• Know location and proper useKnow location and proper use– Fire extinguishersFire extinguishers

– Emergency showerEmergency shower

– Eyewash stationsEyewash stations

– Goggles Goggles

– Aprons Aprons

Protective eyewearProtective eyewear

• Required whenRequired when– Working with any chemicals Working with any chemicals

– During dissectionsDuring dissections

– When heating a substanceWhen heating a substance

Are these girls being safe?

What to do when something gets in your eye:

What to do:• Immediately go to the eye wash

center• Flush eye with water• Tell the teacher• Go to the doctor if irritation

persists

Flush eye thoroughly with water

Eating and DrinkingEating and Drinking

• Never! Never! Never!Never! Never! Never!

What’s wrong in this picture?

NO EATING OR DRINKING IN LAB!

SanitationSanitation• Avoid touching chemicals or Avoid touching chemicals or

chemically treated materials chemically treated materials with bare handswith bare hands

• Always wash hands after Always wash hands after handling chemicals, equipment, handling chemicals, equipment, or biological materialsor biological materials

Never Taste ChemicalsNever Taste Chemicals

• Or anything else in the lab!Or anything else in the lab!

What’s wrong in this picture?

NO EATING OR DRINKING IN LAB!

Smell chemicals by Smell chemicals by waftingwafting

• Don’t Don’t directly directly sniffsniff

Tie back long hair!Tie back long hair!

• Don’t wear excessively loose Don’t wear excessively loose and baggy clothes in the laband baggy clothes in the lab

Can you find something wrong with this picture?

Burning Hair Smells Really Bad!!!

That’s Better!!!

Acid and WaterAcid and Water

• Always add Always add acid to wateracid to water slowly…never water to acidslowly…never water to acid

• Never add solutions together Never add solutions together quickly unless directed to do soquickly unless directed to do so

SAFETY SHOWER

Flammable liquidsFlammable liquids• NeverNever use use

flammable flammable liquids near an liquids near an open flameopen flame

Keep your lab station Keep your lab station cleanclean

• Have only what is immediately Have only what is immediately necessary for the experimentnecessary for the experiment

• Keep supplies, Keep supplies, especially especially glassware, glassware, away from the edges away from the edges of the lab tableof the lab table

Clean Up Your Mess!

GlasswareGlassware

• Never used chipped or broken Never used chipped or broken glasswareglassware

Pleasetell me.

I’ll Clean It Up!!

Unused MaterialUnused Material

• Never return chemicals to a Never return chemicals to a reagent bottlereagent bottle– The teacher will instruct you how to The teacher will instruct you how to

dispose of of itdispose of of it

Heat & ElectricityHeat & Electricity• Never Never leave heat sources unattendedleave heat sources unattended• Never Never place your hand on a hot plate place your hand on a hot plate

surfacesurface• Never Never immerse electrical equipment in immerse electrical equipment in

waterwater• When heating test tubes, point the When heating test tubes, point the

opening away from yourself and others opening away from yourself and others

MicroscopesMicroscopes

• Microscopes are Microscopes are expensive expensive and and delicate delicate instrumentsinstruments– Always Always carry microscopes with carry microscopes with two two

handshands

Ask Questions!Ask Questions!

• There are no dumb questions…There are no dumb questions…only safe ones!only safe ones!

Safety Test ReviewSafety Test Review

The most important lab rules say The most important lab rules say that you shouldthat you should

a. Not eat, drink, or play in a. Not eat, drink, or play in the lab the lab

b. Tie back long hb. Tie back long hair

c. Have teacher supervision

d. All the above

In the laboratory, it is important that In the laboratory, it is important that youyou

a. Unplug hot plates after usea. Unplug hot plates after use

b. Separate paper waste from broken b. Separate paper waste from broken glass glass

c. Keep your work area c. Keep your work area uncluttereduncluttered

d. All the aboved. All the above

When mixing acid and waterWhen mixing acid and water

a. Acid should always be added a. Acid should always be added to the water to the water

b. Water should always be added to b. Water should always be added to the acid the acid

c. Acid and water should be mixed c. Acid and water should be mixed together at the same time together at the same time

d. Warm water should always be d. Warm water should always be added to cold acid added to cold acid

When heating a test tube, it is When heating a test tube, it is important toimportant to

a. Hold the test tube in the upright a. Hold the test tube in the upright position position

b. Hold the test tube as still as possibleb. Hold the test tube as still as possible

c. Point the end of the test tube away c. Point the end of the test tube away from yourself and others from yourself and others

d. All of the aboved. All of the above

When a Bunsen burner is being used, When a Bunsen burner is being used, which of the following rules should which of the following rules should be observed?be observed?

a. Never work in the lab when the a. Never work in the lab when the teacher is not present teacher is not present

b. Tie back long hairb. Tie back long hair

c. Avoid loose clothingc. Avoid loose clothing

d. All the aboved. All the above

A rule that should be followed when A rule that should be followed when working with electrical equipment is working with electrical equipment is toto

a. Set up the equipment to obstruct a. Set up the equipment to obstruct walkways only during lab periods walkways only during lab periods

b. Keep the power setting on lowb. Keep the power setting on low

c. Keep your work area dryc. Keep your work area dry

d. All of the aboved. All of the above

To test the odor of fumesTo test the odor of fumes

a. Inhale the fumes directly from the a. Inhale the fumes directly from the container container

b. Gently waft the fumes toward your b. Gently waft the fumes toward your nose nose

c. Heat the substance before smelling itc. Heat the substance before smelling it

d. Take a deep breath and inhaled. Take a deep breath and inhale

Which of the following is a Which of the following is a poorpoor lab safety practice?

a. Wearing old clothes

b. Knowing how to use a fire extinguisher

c. Eating in the lab

d. Not wearing open-toed shoes

Joe turns the water on and it squirts Joe turns the water on and it squirts you. There is a plastic bottle with a you. There is a plastic bottle with a clear liquid in it on your table. What clear liquid in it on your table. What should you do?should you do?

a. Use your hose to wet hima. Use your hose to wet him

b. Use the squirt bottle with the clear liquid b. Use the squirt bottle with the clear liquid to get him (it’s probably just water) to get him (it’s probably just water)

c. Tell the teacherc. Tell the teacher

d. Catch him in P.E. when he isn’t d. Catch him in P.E. when he isn’t expecting it expecting it

What safety precautions should be What safety precautions should be observed after using ammonia?observed after using ammonia?

a. Clean your work areaa. Clean your work area

b. Wash your handsb. Wash your hands

c. Put away your materialsc. Put away your materials

d. All of the aboved. All of the above

What should be done at the end of What should be done at the end of each laboratory period?each laboratory period?

a. Clean your areaa. Clean your area

b. Wash your handsb. Wash your hands

c. Put away your materialsc. Put away your materials

d. All of the aboved. All of the above

What should What should notnot be done with be done with glassware before it is used?glassware before it is used?

a. Make sure it is Pyrexa. Make sure it is Pyrex

b. Check for cracks or chipsb. Check for cracks or chips

c. Throw it to your partner to check c. Throw it to your partner to check the size the size

d. Make sure it is the correct sized. Make sure it is the correct size

In the case of an acid or base being In the case of an acid or base being spilled on your skin you shouldspilled on your skin you should

a. Neutralize it a. Neutralize it

b. Flush the area with water for 20 b. Flush the area with water for 20 minutes minutes

c. Scream to warn others and run for c. Scream to warn others and run for help help

d. Keep it a secretd. Keep it a secret

You need to put 10 ml of a reagent into You need to put 10 ml of a reagent into a graduated cylinder. By accident you a graduated cylinder. By accident you put in 17 ml. What should you do with put in 17 ml. What should you do with the excess?the excess?

a. Pour it down the sinka. Pour it down the sink

b. Use 17 ml instead of 10 ml in the b. Use 17 ml instead of 10 ml in the experiment experiment

c. Return the excess to the stock jarc. Return the excess to the stock jar

d. Pour the excess into a waste jard. Pour the excess into a waste jar

Safety glasses Safety glasses

a. Should be worn whenever you are a. Should be worn whenever you are working with chemicals, burners, or working with chemicals, burners, or

any other substance that might get in any other substance that might get in your eyes your eyes

b. Are considered unnecessaryb. Are considered unnecessary

c. Should be worn on top of the headc. Should be worn on top of the head

d. Are unnecessary of contact lenses d. Are unnecessary of contact lenses are being worn are being worn

Chipped or cracked glassware may Chipped or cracked glassware may be used if you think it is still safe.be used if you think it is still safe.

a. Truea. True

b. Falseb. False

A base burn can be as serious as an A base burn can be as serious as an acid burn.acid burn.

a. Truea. True

b. Falseb. False

What does the safety What does the safety symbol indicate?symbol indicate?

a. General safety awarenessa. General safety awareness

b. Poisonb. Poison

c. Disease hazard from human c. Disease hazard from human remains remains

d. Pirate shipd. Pirate ship

What does the safety What does the safety symbol indicate?symbol indicate?

a. Sharp objecta. Sharp object

b. Use scissors for this procedureb. Use scissors for this procedure

c. Cut openc. Cut open

d. Animal hazardd. Animal hazard