LAB SAFETY RULES Everyone is Responsible!

“I didn’t mean to” “It wasn’t my fault” No place for these statements in the lab!No place for these statements in the lab!

The Main Threat to Safety… Lack of preparationLack of preparation Lapse of common senseLapse of common sense

NO HORSEPLAY! If it occurs…If it occurs… –Immediate removal from the lab –A grade of zero –Parental notification

Definitely Not Allowed

Inform the teacher of any accident SpillsSpills Broken glassBroken glass Cuts, scrapes, or any injuriesCuts, scrapes, or any injuries

Read Instructions! Always read the directions completely through to the end before beginning an experiment or lab procedureAlways read the directions completely through to the end before beginning an experiment or lab procedure

Follow Instructions! Perform only activities that are called for in the lab instructionsPerform only activities that are called for in the lab instructions

No unauthorized experiments! If you have an idea, talk to the teacherIf you have an idea, talk to the teacher

Safety Equipment Know location and proper useKnow location and proper use –Fire extinguishers –Emergency shower –Eyewash stations –Goggles –Aprons

Protective eyewear Required whenRequired when –Working with any chemicals –During dissections –When 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 Drinking Never! Never! Never!Never! Never! Never!

What’s wrong in this picture? NO EATING OR DRINKING IN LAB!

Sanitation Avoid touching chemicals or chemically treated materials with bare handsAvoid touching chemicals or chemically treated materials with bare hands Always wash hands after handling chemicals, equipment, or biological materialsAlways wash hands after handling chemicals, equipment, or biological materials

Never 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 wafting Don’t directly sniffDon’t directly sniff

Tie back long hair! Don’t wear excessively loose and baggy clothes in the labDon’t wear excessively loose and baggy clothes in the lab

Can you find something wrong with this picture?

Burning Hair Smells Really Bad!!!

That’s Better!!!

Acid and Water Always add acid to water slowly…never water to acidAlways add acid to water slowly…never water to acid Never add solutions together quickly unless directed to do soNever add solutions together quickly unless directed to do so

SAFETY SHOWER

Flammable liquids Never use flammable liquids near an open flameNever use flammable liquids near an open flame

Keep your lab station clean Have only what is immediately necessary for the experimentHave only what is immediately necessary for the experiment Keep supplies, especially glassware, away from the edges of the lab tableKeep supplies, especially glassware, away from the edges of the lab table

Clean Up Your Mess!

Glassware Never used chipped or broken glasswareNever used chipped or broken glassware

Please tell me. I’ll Clean It Up!!

Unused Material Never return chemicals to a reagent bottleNever return chemicals to a reagent bottle –The teacher will instruct you how to dispose of of it

Heat & Electricity Never leave heat sources unattendedNever leave heat sources unattended Never place your hand on a hot plate surfaceNever place your hand on a hot plate surface Never immerse electrical equipment in waterNever immerse electrical equipment in water When heating test tubes, point the opening away from yourself and othersWhen heating test tubes, point the opening away from yourself and others

Microscopes Microscopes are expensive and delicate instrumentsMicroscopes are expensive and delicate instruments –Always carry microscopes with two hands

Ask Questions! There are no dumb questions…only safe ones!There are no dumb questions…only safe ones!

Safety Test Review

The most important lab rules say that you should a. Not eat, drink, or play in the lab b. Tie back long h b. Tie back long hair c. Have teacher supervision d. All the above

In the laboratory, it is important that you a. Unplug hot plates after use b. Separate paper waste from broken glass c. Keep your work area uncluttered d. All the above d. All the above

When mixing acid and water a. Acid should always be added to the water b. Water should always be added to the acid c. Acid and water should be mixed together at the same time d. Warm water should always be added to cold acid

When heating a test tube, it is important to a. Hold the test tube in the upright position b. Hold the test tube as still as possible c. Point the end of the test tube away from yourself and others d. All of the above

When a Bunsen burner is being used, which of the following rules should be observed? a. Never work in the lab when the teacher is not present b. Tie back long hair c. Avoid loose clothing d. All the above

A rule that should be followed when working with electrical equipment is to a. Set up the equipment to obstruct walkways only during lab periods b. Keep the power setting on low c. Keep your work area dry d. All of the above

To test the odor of fumes a. Inhale the fumes directly from the container b. Gently waft the fumes toward your nose c. Heat the substance before smelling it d. Take a deep breath and inhale

Which of the following is a poor Which of the following is a poor 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 you. There is a plastic bottle with a clear liquid in it on your table. What should you do? a. Use your hose to wet him b. Use the squirt bottle with the clear liquid to get him (it’s probably just water) c. Tell the teacher d. Catch him in P.E. when he isn’t expecting it

What safety precautions should be observed after using ammonia? a. Clean your work area b. Wash your hands c. Put away your materials d. All of the above

What should be done at the end of each laboratory period? a. Clean your area b. Wash your hands c. Put away your materials d. All of the above

What should not be done with glassware before it is used? a. Make sure it is Pyrex b. Check for cracks or chips c. Throw it to your partner to check the size d. Make sure it is the correct size

In the case of an acid or base being spilled on your skin you should a. Neutralize it b. Flush the area with water for 20 minutes c. Scream to warn others and run for help d. Keep it a secret

You need to put 10 ml of a reagent into a graduated cylinder. By accident you put in 17 ml. What should you do with the excess? a. Pour it down the sink b. Use 17 ml instead of 10 ml in the experiment c. Return the excess to the stock jar d. Pour the excess into a waste jar

Safety glasses a. Should be worn whenever you are working with chemicals, burners, or any other substance that might get in your eyes b. Are considered unnecessary c. Should be worn on top of the head d. Are unnecessary of contact lenses are being worn

Chipped or cracked glassware may be used if you think it is still safe. a. True b. False

A base burn can be as serious as an acid burn. a. True b. False

What does the safety symbol indicate? a. General safety awareness b. Poison c. Disease hazard from human remains d. Pirate ship

What does the safety symbol indicate? a. Sharp object b. Use scissors for this procedure c. Cut open d. Animal hazard