Transcript Safety Unit - Mrs. Borba Agriculture Science

Science/Lab Safety
Atwater High School
Agriculture Department
Question of the Day

How many FFA activates are required per
quarter?
Objective

Students will be able to identify and
explain critical lab safety symbols.
1.
List 3 unsafe activities
shown in the illustration
and explain why each is
unsafe.
2.
What should Bob do after
the accident?
3.
What should have Sue
have done to avoid an
accident?
4.
What are three things
shown in the lab that
should not be there?
5.
Between Luke and Duke
who is following the
rules?
D
U
K
E
Joe
Ray
Lab and Field Safety
Take two minutes to read over the top two
paragraphs on the first page of the safety
packet.
 Accidents can be avoided
◦ Major causes of lab accidents are:

 Carelessness
 Lack of attention
 Inappropriate behavior
Safety Guidelines

General
◦ Always get your teacher’s permission before
attempting any laboratory or field
investigation.
◦ Read procedures carefully!!
◦ If an accident does occur, inform your teacher
immediately.
Safety Equipment

Know the location of the nearest fire alarm
and other safety equipment.
Neatness
• Keep work area free of all unnecessary books
and papers.
• Tie back long hair and secure loose sleeves or
other loose articles of clothing.
• Never eat, drink or apply cosmetics in a lab
setting.
Cleanup
Clean up your work area
 Put away all equipment and supplies
 Dispose of all chemicals as directed by
your teacher.
 Make sure water, gas, burners, and electric
hot plates are turned off.
 Wash your hands with soap and water
after working in a laboratory situation.

General Conduct
Don’t touch face, mouth or eyes when
working with plants, rocks, soil or
chemicals.
 Don’t look directly into the sun
 Do wear safety goggles to protect eyes
and face from danger.

Chemicals
Wear safety goggles
 Label bottles and test tubes accurately
 Immediately flush chemical-exposed eyes, skin, or
clothing with large amounts of water.
 Never

◦
◦
◦
◦
taste or inhale chemicals
Transfer chemicals with a mouth pipet
Pour water into acid
Stir chemicals with fingers
Electricity
Keep work area dry
 Be sure all electrical equipment is
grounded
 Never touch electrical equipment with
wet hands
 Never overload circuits

Gas
Do not inhale fumes directly
 Do not breathe pure gases such as:

◦
◦
◦
◦
◦
Hydrogen
Argon
Helium
Nitrogen
High concentrations of carbon dioxide
Glassware
Wrap glass tubing in a towel when inserting
or removing it from a rubber stopper.
 Sweep up broken glassware immediately
and dispose properly.
 Pipettes and glass stirring rods should be
dried by toweling.

Fire






Wear safety goggles
Tie back long hair
Turn off all hot plates, burners and other flames
when not in use.
Not to use an open flames around volatile
liquids, such as ether and alcohol.
Do not reach across an open flame.
Always heat rocks in a water bath, never over a
flame.
Jig-Saw Groups
Each Group will get 5 – 6 rules.
 Please read the rules and create a small
poster that simplifies those rules.

EXAMPLE
Rules 1 - 4
Dress Code:
 Always wear safety glasses and an apron
when working with chemicals
 Tie back long hair
 Don’t wear loose clothing or open-toed
shoes

You have 15 minutes.

You’re being timed

GO!
Tables & Rule Numbers
Table 1: 5 – 10
 Table 2: 11 – 14
 Table 3: 15-18
 Table 4: 19-26
 Table 5: 27-33
 Table 6: 34-39
 Table 7: 40-42

Table 8: 43-49
Table 9: 50-52
Review
Clothing
Caustic
Electrical
Explosion
Proper Waste
Gas
Glassware
Chemical
Hand
Fire
water
Eye
Heating Safety