Safety in the Science Lab

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Safety in the Science Lab
  Lab Safety Everyone is Responsible!

• Rules and Symbols

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Safety First

• Scientists know that when working in the
  laboratory, it is very important to follow safety
  procedures. The most important safety rule is to
  always follow your teachers directions or the
  directions in your textbook exactly.
• Make sure you have read each rule and direction
  carefully, making sure you understand each rule.
  If you do not understand a rule, ask your teacher
  to explain it.

Lab Safety Everyone is Responsible!
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Rules and Symbols
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Glassware rules

• When ever there is glassware out on the lab bench
  show extra caution and care when moving about the
  laboratory area.
• When glass breaks never pick it up with your
  hands

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Rules and Symbols Lab Safety Everyone is
Responsible!
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Whats wrong with this picture?
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Whats Wrong With This Picture?
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Liquids

• When ever heating liquids or working with
  dangerous acids make sure to use the safety
  goggles
• Never point the open end of a test-tube toward
  another person

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Whats Wrong With This Picture?
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smelling

• When smelling a substance for scent or change in
  scent never stick your nose in the container. The
  correct procedure is to wave your hand over the
  top of the container and smell the fumes from the
  side.

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Whats Wrong With This Picture?
Reading the meniscus
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Whats Wrong With This Picture?
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What Are the Missing Safety Devices?

• Fire blanket
• Fire extinguisher
• Safety hood or vent
• ________
• ________

Lab Safety Everyone is Responsible!
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The fire extinguisher is located on the back sink.

• Only the science facilitator is authorized to use
  the fire extinguisher.

A. Combustible wood, clothes, paper, plastic,
and rubber. B. Flammable liquids oil, grease and
paint thinner. C. Energized electrical equipment.
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P-A-S-S.

• The average fire extinguisher only operates about
  10 seconds. Don't waste it!
• You must get close to the fire - as close as 5 or
  6 feet!
• To effectively operate an extinguisher, think
  P-A-S-S.
• P -- pull the pinA -- aim the hose at the base
  of the
• fireS -- squeeze the handleS -- sweep
  the hose back and forth

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Exiting from Room 43

• Quietly Get up and Remember to Push Your Chair
  Under the Table.
• Move Towards the Classroom Door in an Orderly
  Fashion.
• Exit Going Towards Your Left.
• Continue Moving Down the Hall, Until You Get to
  the Double Exist.
• Exit the double doors

Lab Safety Everyone is Responsible!
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Safety Contract
NO HORSEPLAYING IS ALLOWED.

• Always read and make sure understand the activity
  or investigation you are going to do. Whenever
  you see the word caution, follow the directions
  carefully.
• Learn where safety equipment is located in your
  classroom . Make sure understand how and when it
  is to be used.
• Do not work in the lab when you are unsupervised.
  Do not perform investigations without your
  teachers permission. Never mix, touch, taste,
  heat or breathe chemicals unless you are told to
  do so by your teacher.
• Always wear safety goggles and an apron when
  working with chemicals.
• Do not use cracked or broken glassware. Report
  this to your teacher.
• Keep all work surfaces and equipment clean.
• Do not eat or drink in the classroom, unless told
  otherwise by your teacher.
• When you finish your work in the lab make sure
  that your work surface is clean. Return all
  materials to their proper places.
• Be sure to wash your hands with soap and water
  after working in the lab.
• Report all accidents to your teacher.