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!