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Lab Safety
Milton High School
Steps to Prove You are a Responsible Science Student
Read lab safety contract Follow all lab safety procedures Notify the teacher immediately when a lab
accident occurs Correct your classmates when they fail to
follow lab procedures Follow instructions
Where and Why Science Accidents Occur
Student failure to read and understand instructions
Failure to enforce safety in the lab Poorly written lab instructions Overcrowded science classroomsOvercrowded science classrooms
Minimize your movement around classroom Bookbags should be placed out of the way
and not in the aisles Listen carefully to all instructions Ask questions when in doubt
Overcrowded Classrooms
When do student’s need to wear goggles?
Circumstances requiring eye-protective devices
Anytime a student is engaged in an activity or is observing the use of hazardous substances likely to cause injury to the eyes
Working with hot metal Working with hot liquids or solids or with chemicals
that are flammable, toxic, corrosive to living tissues, irritating, strongly sensitizing, or that generate pressure through heat, decomposition, or other means
Working with materials or equipment under stress, pressure, or force that might cause fragmentation
Should students wear safety goggles when heating water?
Do you see any safety violations in this picture?
You are working on a lab activity which involves the use of concentrated hydrochloric acid. You
begin to smell an unusual odor in the classroom. What actions do you take?
What are the safety precautions necessary for the dissection of a flower?
A very simple activity – what
might go wrong?
Goggles should remain on until all students have finished cleaning up after
the lab – there is still potential for chemical splashes and broken glassware
during clean-up
No sandals during lab
Closed-toe shoes will be worn
during lab
Do you see anything wrong in this picture?
When do you add water to
acid?
NEVER ADD WATER TO ACID – YOU SHOULD ADD ACID TO
WATER
If a chemical splashes in your eye(s) or on your skin, immediately flush with running water for at least 20 minutes and
notify the teacher immediately
Why are students not allowed in the lab storage room?
In case of an emergency be sure all containers are closed and gas valves and electrical equipment is turned off
No food or drink in the lab
No horseplay, practical jokes or pranks in the lab
Keep flammable liquids away from an open flame
Long hair should be tied back
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