Mr. Banerjee’s Science Classroom
Lab Safety
Pages 658 - 660
1
A. Preventing Accidents
1. Carelessness causes the most accidents in the
lab.
2. Know the 6 common causes of accidents in
your book (page 659)
2
B. Before You Start
Six Key things to remember before you start
a lab.
1.
Location of everything
Inform Mr. Banerjee of important things
Pre-read lab procedures prior to lab
1.
2.
3.
1.
4.
5.
6.
Keep lab area clean and clear
Wear Safety goggles
Secure all hazardous equipment
Never work alone.
3
C. Working With Chemicals
1.
2.
3.
4.
5.
6.
7.
8.
Do not Taste, Touch or Smell Chemicals (unless
asked to do so by me.)
Be aware of where MSDS (Material Safety Data
Sheet) is kept.
Label all containers.
Chemical contact must be washed thoroughly.
Handle all chemicals carefully
Test tubes must be in RACKS before pouring
liquids.
Clean up all spills
Do not return unused sample back to STOCK.
4
D. Heating
1.
2.
3.
4.
Do not heat flammable materials.
Use proper glassware for heating.
Hold equipment properly when heating.
Careful handling hot (heated) equipment.
5
E. Other Hazards
1. Electricity and water don’t mix
2. Use broken glass receptacle for broken glass
only. (Let teacher know of broken glass)
3. Disposing waste follow teacher’s instructions.
4. Report ALL accidents to teacher.
5. Wash hands thoroughly prior to leaving the lab.
6
D. Electrical Safety
1.
2.
3.
Lay electrical cords where no one can
trip on them or get caught in them.
Be sure your hands and your lab area
are dry before using electrical
equipment.
Never poke anything into electrical
outlets.
7
D. Electrical Safety
4.
5.
Unplug cords by pulling the plug and not
the cord.
Unplug all electrical equipment at the end of
the lab period.
8
First Aid
Injury:
To Do:
Burns
Immediately flush with cold
water until burning sensation is
lessened.
9
First Aid
Injury:
Cuts, bruises
To Do:
Do not touch an open wound without
safety gloves. Pressing directly on minor cuts will
stop bleeding in a few minutes. Apply cold
compress to bruises to reduce swelling.
10
First Aid
Injury:
Fainting
To Do:
Provide fresh air and have the person
recline so that their head is lower than
the rest of their body.
11
First Aid
Injury:
The eyes
To Do:
Flush eyes immediately with plenty of
water for several minutes. If a foreign object
is lodged in the eye, do not allow the eye to
be rubbed.
12
First Aid
Injury:
Poisoning
To Do:
Find out what substance was
responsible for the poisoning
and alert the teacher
immediately.
13
First Aid
Injury:
Spills on the skin
To Do:
Flush with large quantities of water.
For acid spills, apply baking soda solution.
For base spills, apply vinegar or boric acid.
14
First Aid
Injury:
Electrical shock
To Do:
Shut off the current at the source.
Remove wire with rubber gloves. Alert the
teacher immediately.
15