your life depends on it!! essential questions how do you stay safe in a lab? why is safety...
TRANSCRIPT
Your life depends on it!!
Essential Questions
How do you stay safe in a lab?Why is safety important?
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
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.
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
Acid Damage
Flying Glass
Acid burn
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
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
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
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
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
Safety Symbols
Open flame
Open flame may ignite flammable chemicals, loose clothing, or hair
Animal Safety
This symbol appears when safety of animals and students must be ensured.
Clothing protection
This symbol appears when substances could stain or burn clothing.
Eye safety
Proper eye protection should be worn at all times by anyone performing or observing science activities
Toxic
Substance may be poisonous if touched, inhaled, or swallowed
Chemical
Chemicals that can react with and destroy tissue and other material
Irritant
Substance that can irritate the skin or mucous membranes of the respiratory tract
Electrical
Possible danger from electrical shock or burn
Fume
Possible danger to respiratory tract from fumes
Sharp object
Use of tool or glassware that can easily puncture or slice skin
Extreme Temperature
Objects that can burn skin by being too hot or too cold
Biological
Organisms or other biological materials that might be harmful to humans
Radioactivity
This symbol appears when radioactive materials are used.
Disposal
Special disposal procedures need to be followed
Lab Safety
It’s everybody’s responsibility!