Chemistry Safety Rules

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What should you do before beginning a Lab?
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Listen carefully to all pre-lab instructions. Pay attention to new equipment use, changes in procedure, safety and disposal guidelines of chemical.
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What should be on your lab station?
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Only the equipment and chemicals needed for the lab. Clear all unnecessary materials from lab station.
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What should you do first in lab?
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Read all directions carefully and follow exactly as written unless specified by your teacher – ASK if you are unsure about anything after reading the directions.
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What should be clean before the lab begins?
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Make sure all glassware, lab table and equipment is clean before using it.
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What are the general rules about food or eating during a lab?
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No Gum, food or drinks are not permitted in the laboratory.
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What are the general rules about clothing during a lab?
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Proper attire such as safety glasses, aprons, shoes (closed toed) should be worn at all times in the lab – even during set-up and clean-up. Likewise, long hair should be pulled back.
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Where should your body during during a lab?
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Stay at your Lab table. Avoid unnecessary movement and talking in the lab area. Remain at your lab table unless retrieving materials or the teacher tells you to move.
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Where should chemicals be measured?
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Always use a weigh boat, never place chemicals directly on balances
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During a lab it is important to use ______?
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Always the SAME balance for all measurement during a lab
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When heating a test tube what direction should it be pointed?
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When heating a test always point the opening AWAY from yourself and others.
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When viewing a test tube what direction should be looked at?
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The test tube content should be viewed or looked from the side.
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When using glassware what is important to remember?
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Hot glassware looks the same as cool glassware- make sure equipment is properly cooled before touching obtaining mass, or storing.
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Where is it is important to never put glassware?
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Do not place hot glassware directly on a table surface or under running water.
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Where should cool glassware be store?
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Always cool glassware on a wire gauze.
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What should you do when you find broken glassware?
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Notify or TELL your teacher in case of broken glassware. It should be disposed of in the broken glass bin.
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Can you use broken glassware?
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Never use broken or cracked glassware
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What happens if you break a lot glassware?
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You will be charged for excessive lab breakage.
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Who can enter or be in the Laboratory stock room?
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Only the teacher can be in the laboratory stock room. Do not enter the laboratory stock room.
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How should you treat all chemicals
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When Working with Chemicals, treat all chemicals as if they were dangerous.
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It is important never ____, ____ or ____any chemicals
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touch, eat or smell
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What is the Wafting Technique?
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If you are asked to smell a laboratory chemical, do not inhale the fumes directly from the container, INSTEAD Gently fan some of the vapor toward your nose (Wafting Technique).
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Can you perform unauthorized/unsupervised activities or experiments at school? .
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Never perform unauthorized/unsupervised activities or experiments. Never mix chemicals for the fun of it. You might produce a potentially dangerous or explosive mixture.
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It is important to _____-_____ chemical _____ to make sure you have the correct substance.
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DOUBLE- CHECK chemical LABELS to make sure you have the correct substance.
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When using chemicals how much should you take?
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You should take only as much as you need and keep all lids closed when not in use to avoid contamination.
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Where should return unused chemicals?
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Never return unused chemicals to original bottles. Ask your teacher or listen for the direction
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What chemicals should your be extra careful with? acids or bases-immediately rinse any spills with lots of water because they can seriously burn skin or clothing. Always notify your teacher in the event of these spills.
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Be extra careful when working with ACIDS or BASES. –
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Why should you be careful with Acid or Base
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They can seriously burn skin or clothing.
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What should you do if you spill Acid or Base
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immediately rinse any spills with lots of water because they can seriously burn skin or clothing. ALWAYS NOTIFY /TELL your teacher in the event of these spills.
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When mixing acid and water which should be done first?
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Always add acid to water first, never pour water into acid.
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What is important to know during an Accidents/Spills:
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it is important to know the location and use of all safety equipment in your laboratory.
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Where is the SAFETY SHOWER?
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The SAFETY SHOWER is back corner of room. Pull lever to use.
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Where is the Electricity shutoff value?
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ELECTRICITY – plunger near the stock room doorway and in front of classroom (red).
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Where is the EYE WASH
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EYE WASH is same corner as safety shower. Push lever and rinse for 15 minutes
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Where is the FIRE BLANKET?
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FIRE BLANKET is on the wall by goggle cabinet
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Where is the FUME HOOD?
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FUME HOOD is in back of room. Turn on/off switch is inside of stock room
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Where is the FIRE EXTINGUISHER ?
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FIRE EXTINGUISHER is on the wall with fire blanket
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Where is the FIRST AID KIT ? – teacher desk
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FIRST AID KIT is in teacher desk
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Who should you report all accidents to?
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Report ALL accidents to your teacher immediately, no matter how small or minor.
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How should you clean up SOLID spills?
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Clean SOLID spills with a dry paper towel or dustpan and broom
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How should you clean up LIQUID spills?
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Liquid spills should be wiped with a sponge or mop and plenty of water.
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How should minor skin burns be treated?
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Minor skin burns should be placed under cold running water.
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How should minor skin burns of the face and eye be treated?
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If the eyes are affectedwater-washing must being immediately and continue for 10-15 minutes or until professional assistance is obtained. TELL THE TEACHER OR CALL FOR HELP
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How should you Clean-Up/Disposal of chemicals?
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Listen to the directions given: Dispose of all chemical will be TOLD to you by your teacher.
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How should you Clean-Up/Disposal of SOLID chemicals?
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MOST solids can be thrown in the trash
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How should you Clean-Up/Disposal of LIQUID chemicals?
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MOST liquids down the sink (flushed with lots of water).
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What can not be put down the sink?
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Do not put anything especially solids or pieces of metal down the sink unless instructed to do so.
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When the lab is ended it, what should be done with the burners & gas?
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Turn off all burners and check to make sure gas lines are off.
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You should _____ leave a flame unattended for any reason.
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NEVER leave a burner or flame unattended for any reason.
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What should you do with Glassware at the end of a lab?
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Glassware should be thoroughly cleaned dried and returned to its proper location.
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What should you do with equipment at the end of a lab?
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Return all other equipment glasses, aprons etc. to their designated areas neatly and clean.
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At the end of a lab it is important to remember to?
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Make sure your lab table has been cleaned and your hands have been washed before leaving.

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