Identify these lab safety signs

Lab SafetyAugust 25, 2010

This is not a complete listing of safety rules for the science lab but these are

the main ones you will need for our science classes.

Safety in the Lab-What’s Wrong?

Safety Rules for Lab• When you enter the science

room, do not touch anything already set up until instructed to do so

• Follow teacher’s instructions at all times

• Read directions before beginning

• No horseplay!

Safety Rules for Lab

• Do not eat, drink, or chew gum in the lab

• Keep work area clean and clear at all times

• Report any accidents, injuries, spills, or breakage to teacher

Safety Rules for Lab• Contact lens should not

be worn in lab

• Safety goggles should be worn

• No open toe shoes – shoes should cover feet

• Long hair must be pulled back, no dangling jewelry, no baggy clothes

Safety Rules for Lab• Examine all glassware for

cracks or damage before using them

• Never handle broken glass with bare hand

• Do not put hot glassware in cold water

• Never taste or directly smell anything in the lab – use wafting motion to smell

Safety Rules for Lab• Never pour chemicals down the

sink drain – check with teacher

• Do not put hands in face around mouth, eyes, or nose when handling chemicals

• Always wash hands with soap and water when finished

• Never pour unused chemicals back into the original container

• Never point open end of test tube or container towards anyone

Quiz

• All waste chemicals can be safely poured down the drain if diluted 100:1.

True

False

Quiz

• Eating, drinking, chewing gum and putting on makeup/cosmetics are permitted in the laboratory.

True

False

Quiz

• Whom should you call in case of an emergency in the lab?

A) Instructor

B) Nobody

C) A friend

D) Anybody

Quiz

• What should be worn in a laboratory at all times to decrease the likelihood of eye injury?

A) Corrective lenses

B) Safety Glasses

C) A mask

D) Nothing

Quiz• Why is it not advisable to wear contact

lenses in the lab?

A) Lenses could inadvertently fall out of

the eye

B) Chemical vapor could become trapped

between the lenses and the eye

C) Chemical vapor could literally react with

the lenses

D) All of the above

Quiz

• What type of footwear is required in the lab?

A) Shoes are optional

B) Hard-soled, covered shoes

C) Sandals

D) Something in a low heel

Quiz• Describe the procedure for smelling a

chemical.

A) Stick your nose close to the vessel and breath deeply

B) Point vessel away from face while gently fanning vapors toward nose

C) Never smell a chemical D) Smell chemical as you would anything

else

Images Cited• http://mjksciteachingideas.com/safety.html• http://www.proprofs.com/quiz-school/upload/

yuiupload/1011487234.jpg• http://www.williamsclass.com/images/

JPGImages/LabSafetyGlasses.jpg• http://ehs.iupui.edu/ehs/labnotesSpring2009/

img/NoFood.jpg• http://www.marcomltd.com/marcomUI/images/

TitleIcons/lss/LSS_SafeHandlingOfLabGlass.gif• http://www.thedailygreen.com/cm/

thedailygreen/images/LO/clogged-drain-hm-lg.jpg