discuss 1) in what ways can we be safe in a lab? 2) what is 1 thing you wear in a lab?
TRANSCRIPT
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Discuss
• 1) In what ways can we be safe in a lab?
• 2) What is 1 thing you wear in a lab?
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Lab Safety Checking for Understanding with the following headings
Before the Lab
During the Lab
If there’s a problem…
For glassware
Cleaning up
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Laboratory Safety
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BEFORE THE LAB
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Dress properly during a laboratory activity.
Long hair, dangling jewelry, and loose or baggy clothing are a
hazard in the laboratory.
Long hair must be tied back, and dangling jewelry and baggy clothing must be secured. Shoes must
completely cover the foot. No sandals allowed on lab days.
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Get your googles from the cabinet
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Which Ms. Morris-O’Hearn is ready for the lab?
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Which shoe is appropriate?
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Don’t touch, until toldWhen first entering
a science room, do not touch any
equipment, chemicals, or
other materials in the laboratory
area until you are instructed to
do so.
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Where’s the safety equipment?
Know the locations and operating procedures of all safety equipment
including: first aid kit(s), and fire extinguisher. Know where the fire alarm and the exits are located.
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T-1: Fire Extinguiser is by the door, first aid is by the whiteboard
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No food
Do not eat food, drink
beverages, or chew gum in
the laboratory. Do not use laboratory
glassware as containers for
food or beverages.
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Know the directionsFollow ALL written and
verbal instructions carefully. If you do not understand a direction
or a part of the procedure, ASK YOUR TEACHER BEFORE PROCEEDING WITH
THE ACTIVITY!
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Before the Lab—Answer in complete sentences1) How do we dress for a lab?
2) What is the rule about food and gum?
3) Can you touch equipment before being told?
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During the Lab
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Be responsible
Conduct yourself in a responsible
manner at all times in the laboratory.
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Use waste containers so you don’t contaminate the original material
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Work together
Never work alone in the
laboratory. No student may work in the
science classroom without the
presence of a teacher.
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Authorized experiments only!
Perform only those experiments
authorized by your teacher. Carefully
follow all instructions, both written and oral.
Unauthorized experiments are not
allowed.
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Avoid hazards
Be prepared for your work in the laboratory. Read
all procedures thoroughly before
entering the laboratory. Never fool around in the laboratory. Horseplay,
practical jokes, and pranks are dangerous
and prohibited.
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Keep your area organized and label everything
Observe good housekeeping practices. Work areas should be kept clean and
tidy at all times.
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Don’t wanderExperiments must be personally monitored
at all times. Do not wander around the room, distract other students, startle other
students or interfere with the laboratory experiments of others.
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Goggles on at all times
Any time chemicals, heat, or glassware are used, students will
wear safety goggles. NO EXCEPTIONS TO THIS RULE
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Ask for help
If you do not understand how to use a piece of equipment, ASK THE
TEACHER FOR HELP!
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During the Lab—Answer in complete sentences1) When can you take off your
goggles?
2) What are 3 ways you can ensure that the lab is safe?
3) If you take too much of a chemical then___________________
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If there is a problem…
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YELL FOR HELPIf you or your lab partner is hurt,
immediately (and loudly) yell out the teacher's name to get the teacher's
attention. Do not panic.
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USE the eye washIf a chemical should splash in your eye(s) or on your skin, immediately flush with running water for at least 20 minutes. Immediately (and loudly) yell out the teacher's name to
get the teacher's attention.
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Notify of dangerous hazardsBe alert and proceed with caution at all times in the
laboratory. Notify the teacher
immediately of any unsafe
conditions you observe
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Report accidents or injuriesReport any accident (spill, breakage,
etc.) or injury (cut, burn, etc.) to the teacher immediately, no matter how
trivial it seems. Do not panic.
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T-21: Fire Extinguiser is by the fridge, first aid is on the bookcases
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Know what to do in a drill
Know what to do if there is a fire drill
during a laboratory
period; containers must be closed, and any electrical
equipment turned off
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If there is a problem…
1) What should you do if someone is injured?
2) Where is the first aid located?
3) What do you do if something gets in your eyes?
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FOR GLASSWARE
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Use clean, unbroken glasswareExamine glassware before each use.
Never use chipped, cracked, or dirty glassware.
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Don’t touch broken glass
Never handle broken glass with your bare
hands. Tell the teacher immediately, the teacher will clean
it up.
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Nothing hot in the sink
Do not immerse hot glassware in cold water. The glassware may shatter.
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Be careful with the hot plate
Do not operate a hot plate by yourself. Take care that hair, clothing, and
hands are a safe distance from the hot
plate at all times. Use of hot plate is only allowed in the presence of the
teacher.
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Use tongs for hot items
Heated glassware remain very hot for a long time. They should be set aside in a
designated place to cool, and picked up with caution. Use tongs or heat protective
gloves if necessary.
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Don’t watch a boiling test tube
Never look into a container that is being heated.
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Don’t touch hot plates or test tubes
Do not place hot apparatus directly on the laboratory desk. Always use an insulated pad.
Allow plenty of time for hot
apparatus to cool before touching it.
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Always use your brain
ALWAYS think before you do something!!!!
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For glassware
1) What things can happen to glassware that you should be aware of?
2) How should you touch glassware that has been on the hot plate?
3) Why shouldn’t you look at a boiling test tube?
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CLEANING UP
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Wash your handsKeep hands away from face, eyes,
mouth, and body while using chemicals or lab equipment. Wash
your hands with soap and water after performing all experiments.
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Dispose of chemicals
• Dispose of chemicals in waste containers, not down the sink
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Cleaning
1) What do you do with the chemicals that you have finished with?
2) What should you do before you leave the lab?
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Goal—100% on safety quiz
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Safety ContractRead the safety contract and sign it. See me if you wear contacts
I will be holding you to your word!
Quiz—Monday. Set an alarm.