your life depends on it!! essential questions how do you stay safe in a lab? why is safety...
TRANSCRIPT
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Your life depends on it!!
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Essential Questions
How do you stay safe in a lab?Why is safety important?
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General Precautions: Follow teacher’s/lab instructions Never perform activities without
approval and supervision of your teacher
No horseplay Never eat or drink in the
laboratory Keep work areas clean and
uncluttered
Lab Safety
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He decided to play with dry ice and didn’t listen to the teacher: you can see the where the cap of the bottle went.
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Dress Code Wear safety goggles at all times Wear lab apron when working with
corrosive chemicals Wear gloves when working with
organisms or harmful chemicals Tie back long hair Let instructor know if you wear
contacts. Wear close-toed shoes Remove or tie back clothing or
jewelry that hangs down, roll up sleeves long sleeves
Lab Safety
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Acid Damage
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Flying Glass
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Acid burn
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Lab Safety
First Aid: Report all accidents,
injuries or fires immediately to teacher.
Know location of first aid kit, fire extinguisher and eye wash station
If acid splashed on skin, wash with lots of water
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Heating and Fire Safety Keep combustible
materials away from flames
Point test tubes away from everyone when heating
Never heat a liquid in a closed container
Use an oven mitt to pick up a heated container
Do not leave a lit burner unattended
Lab Safety
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Chemical Safety Never put you face near mouth of
chemical container Never touch, taste or smell
chemical unless approved by teacher.
Use only chemicals needed in activity
Keep all containers closed when chemicals not used
Dispose of chemicals as instructed by teacher. Never return unused chemicals to stock container
Never pour water into an acid
Lab Safety
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Glassware Safety If glassware is broken or
chipped, tell teacher immediately
Never handle broken or chipped glass with bare hands
Never force glass tubing or thermometers into a rubber stopper or rubber tubing
Lab Safety
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End-of-Experiment Rules Unplug all electrical
equipment Clean up your work area Dispose of waste
materials as instructed by teacher.
Wash your hands after every experiment
Lab Safety
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Safety Symbols
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Open flame
Open flame may ignite flammable chemicals, loose clothing, or hair
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Animal Safety
This symbol appears when safety of animals and students must be ensured.
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Clothing protection
This symbol appears when substances could stain or burn clothing.
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Eye safety
Proper eye protection should be worn at all times by anyone performing or observing science activities
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Toxic
Substance may be poisonous if touched, inhaled, or swallowed
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Chemical
Chemicals that can react with and destroy tissue and other material
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Irritant
Substance that can irritate the skin or mucous membranes of the respiratory tract
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Electrical
Possible danger from electrical shock or burn
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Fume
Possible danger to respiratory tract from fumes
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Sharp object
Use of tool or glassware that can easily puncture or slice skin
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Extreme Temperature
Objects that can burn skin by being too hot or too cold
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Biological
Organisms or other biological materials that might be harmful to humans
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Radioactivity
This symbol appears when radioactive materials are used.
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Disposal
Special disposal procedures need to be followed
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Lab Safety
It’s everybody’s responsibility!