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