WELCOME TO SCH3U
INTRO
Agenda
• Hand out Science policy
• Safety Rules, WHMIS & HHPS Symbols- precautions &
risks pg. 629-33
• Lab Equipment & How to Use pg. 640-644,
Diagnostic tests pg. 645
• HW: Study for the QUIZ and Finish Safety in the
chemistry lab worksheet
Science Lab Safety Rules
1. Always wear goggles. There will be no
exceptions to this rule!
Students often complain that goggles are
uncomfortable, hot, and funny looking….
• but the alternative to goggles could be this
Or this..
Or this!!!
2. Conduct yourself in a responsible manner at
all times in the laboratory.
3. Study your lab assignment before you come
to class and have your Pre Lab completed. Pay
particular attention to dangerous reagents or
special safety precautions.
4. Never work in the lab without proper
supervision.
5. Never perform an unauthorized experiment.
6. Never pipet by mouth and never inhale gases
or other vapors.
7. Be careful with glass equipment.
8. Never eat, drink or chew gum in any part of
this classroom.
9. Report any accident, injury, chemical spill or
inappropriate procedure at once.
10. Tie back long hair and secure loose clothing.
11. Do not leave a lighted burner unattended.
12. Read labels of reagent bottles carefully
before using the chemicals.
13. Never return unused chemicals to a reagent
bottle. Do not put a pipet, dropper or spatula
in a reagent bottle – pour the reagent into a
small beaker instead.
14. Always pour acid slowly into water to dilute
– never pour water into acid. (Remember:
ADD ACID)
15. Place broken glass, solid substances and
used chemicals in designated container.
Never throw a chemical down the sink unless
given permission by your teacher.
16. Keep your lab area as clean as possible at all
times.
17. Wash your hands with soap and water after
each experiment.
18. To test the odor of a solution, do not hold it
directly under nose. Hold it away and wave
your hand over the solution towards you.
(wafting)
19. Use the fumehood when working with
volatile substances or poisonous vapors.
Emergency Situations
1. Spray fire extinguisher left to right at the
base of the flame. Where is the fire
extinguisher? ______________________
2. If clothing catches fire, stop, drop and roll. If
your lab partner’s clothing catches fire use
the fire blanket to smother the fire. Where is
the fire blanket?_____________
3. Corrosive chemicals splashed on skin should
be flushed off promptly with copious amounts
of flowing water for at least 15 minutes.
4. A corrosive chemical in the eye is a very
serious matter. Get to an eye wash fountain
immediately (within 15 seconds if possible).
Wash the eye for at least 15 minutes while
someone else calls the nurse. Keep the eyelid
open fully; move the eyeballs up, down, left,
right, criss-cross, round and round. How do
you use the eye wash
fountain?________________
LAB EQUIPMENT and USE
Show and Tale
1.Complete all the Equipment
worksheets
2. Study for the Safety Quiz
3. REVIEW scientific notation,
rounding and significant digits pg.
649-650