presentation notes - keeping it safe in the food science lab · 2014. 12. 3. · author: statewide...

Presentation Notes Keeping It Safe in the Food Science Lab

Keeping It Safe in the Food Science Lab Copyright © Texas Education Agency, 2014. All rights reserved.

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Keeping It Safe in the Food Science Lab

Before we begin any lab experiments, we must first learn about safety. We need to make sure that you will be safe during the lab experiments and that everyone around you will be safe.



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Copyright

Copyright © Texas Education Agency, 2014. These Materials are copyrighted © and trademarked ™ as the

property of the Texas Education Agency (TEA) and may not be reproduced without the express written permission of

TEA, except under the following conditions:

1) Texas public school districts, charter schools, and Education Service Centers may reproduce and use copies of

the Materials and Related Materials for the districts’ and schools’ educational use without obtaining permission

from TEA.

2) Residents of the state of Texas may reproduce and use copies of the Materials and Related Materials for

individual personal use only, without obtaining written permission of TEA.

3) Any portion reproduced must be reproduced in its entirety and remain unedited, unaltered and unchanged in

any way.

4) No monetary charge can be made for the reproduced materials or any document containing them; however, a

reasonable charge to cover only the cost of reproduction and distribution may be charged.

Private entities or persons located in Texas that are not Texas public school districts, Texas Education Service

Centers, or Texas charter schools or any entity, whether public or private, educational or non-educational, located

outside the state of Texas MUST obtain written approval from TEA and will be required to enter into a license

agreement that may involve the payment of a licensing fee or a royalty.

For information contact: Office of Copyrights, Trademarks, License Agreements, and Royalties, Texas Education

Agency, 1701 N. Congress Ave., Austin, TX 78701-1494; phone 512-463-7004; email: [email protected].

Copyright © Texas Education Agency, 2014. All rights reserved.



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Safety

Basic Rules

Safety Symbols

The condition of being protected from or unlikely to cause

danger, risk or injury


Safety is the freedom from danger or risk of injury. What do you think safety means to you?



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Basic Rules

Do

• Act responsibly

• Know the location of all safety

equipment

• Read lab procedures ahead of time

• Report accidents , spills and injuries

to your instructor

Do Not

• Eat

• Drink

• Chew gum

• Throw items

• Work alone

• Remove chemicals or equipment from

the lab


Working in the lab is serious business. Behave in a responsible manner at all times.



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Safety Symbols

Chemical

Clothing

Electrical

Equipment

Eye

Fire

Hand

Personal Hygiene

Sharp Objects

Waste Disposal


Safety is the condition of being protected from or unlikely to cause danger, risk or injury. A symbol is a thing that represents or stands for something else, especially a material object representing something abstract Safety symbols should be easily recognized.



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Chemical Symbol

Alerts you that substances used in the experiment require

special handling and precautions

6Copyright © Texas Education Agency, 2014. All rights reserved.

Toxic chemicals may bear a symbol similar to this. Be sure to handle chemicals with this symbol carefully.



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Chemical Safety

• Follow specific instructions

• Use chemicals from

labeled containers only

• Wear safety goggles


Always: • use the exact amount of a chemical needed • read the chemical labels twice to make sure you have the correct container • wear safety goggles if working with dangerous chemicals



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Clothing Symbol

Reminds you to take certain precautions to protect yourself

and your clothing while working in the lab


A symbol like this will remind you to wear protective clothing while performing experiments.



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Clothing Safety

• Dress appropriately

• Remove loose or baggy clothing and dangling earrings

• Tie hair back

• Wear closed-toe shoes

• Wear a lab apron when working in the lab


Appropriate dress will include: • Tying back long hair • Wearing closed-toe shoes to protect your feet from falling objects or spills • Removing loose-fitting jackets and dangling earrings • Wearing an apron or lab coat to protect you while working on experiments



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Electrical Symbol

Alerts you that the procedure requires electrical equipment

and electrical safety practices


A symbol similar to this will remind you to use caution with electrical appliances.



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Electrical Safety

• Check all equipment

before use

• Keep cords clear of

hazards such as heat or

water sources

• Never leave appliances or

equipment unattended


Electrical equipment with frayed cords or exposed wires should not be used. Remember to handle electrical equipment with dry hands.



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Equipment Symbol

Reminds you of general rules for using the specialized

equipment of a lab


A symbol similar to this will remind you of using specialized equipment safely.



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Equipment Safety

• Be familiar with all

equipment before using it

in the lab

• Transport equipment

properly

• Use equipment only for its

designated purpose


Use only the equipment required for the lab and be sure to return it to its proper location after use.



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Eye Symbol

Alerts you that some conditions of the experiment require

extra attention to eye safety


A symbol similar to this reminds us to keep our eyes covered during an experiment.



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Eye Safety

• Avoid wearing contacts, if

possible

• Know the location of the

emergency eye wash

station

• Wear approved safety

goggles


Safety goggles should be worn when heating substances or working with chemicals. Wearing contacts may absorb vapors under the safety goggles and could be difficult to remove in an emergency.



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Fire Symbol

Alerts you that the procedure involves the use of a burner or

other source of heat


A symbol similar to this reminds us that fire may be used as a source of heat in the experiment.



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Fire Safety

• Never reach across an open

flame

• Turn off burners when not in

use

• Never use an open flame when

working with volatile liquids,

such as alcohol

• Know how to use the fire

extinguisher, fire blanket and

safety shower.


Keep flammable objects such as paper towels and pot holders away from open flames. Never leave an open flame unattended. Take a look around the room and locate the following: • fire alarm • fire blanket • fire extinguisher • safety shower



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Hand Symbol

Tells you that some steps in the experiment call for particular

attention to hand safety


A symbol similar to this reminds us that our hands can easily be hurt or contaminated with bacteria.



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Hand Safety

• Wear approved gloves and

equipment to protect

yourself from heat and

sharp objects

• Use caution when working

with knives and other

sharp objects


Allow items that have been heated to cool before handling. Use tongs to handle hot containers. Knife safety: • carry with point turned down and away from others • cut away from your body when slicing food • store knives safely • use only for intended purpose Never: • try to catch a falling knife • point with a knife



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Personal Hygiene Symbol

Serves as a reminder for safe personal habits in the lab


A symbol similar to this reminds us of safe personal habits.



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Personal Hygiene Safety

• Wash hands with soap and

water before and after lab

• Handle microorganisms

grown in a petri dish or test

tube with care

• Avoid touching your eyes,

face or mouth with your

hands


Be sure to wash your hands after: • handling chemicals • handling containers that hold chemicals • cleanup



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Sharp Object Symbol

Reminds you to take precautions when using lab glassware


A symbol similar to this reminds us to be careful with glass equipment.



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Sharp Object Safety

• Do not use broken,

chipped or cracked

glassware

• Keep glassware away from

the edge of the table

• Use precautions when

handling heated glassware


To clean up broken glassware, use a damp paper towel. Never use your bare hands.



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Waste Disposal Symbol

Refers to the appropriate disposal of chemicals or waste


A symbol similar to this reminds us of proper disposal of all chemicals or waste.



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Waste Disposal

• Follow teacher’s

instructions for:

• Broken glass and

substances

• Chemical and microbial

materials

• Paper toweling and other

disposable cleaning supplies


Proper disposal of chemicals or waste is very important as chemicals can be corrosive. Never discard any materials in a sink. Note to teacher: Check with your school district for specific information on how to properly dispose of potentially hazardous materials.



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Flinn Scientific Laboratory Safety

Challenge

(image from video – click on image)


Click on the image to view the video: Flinn Scientific Laboratory Safety Challenge

Witnessing lab procedures gone awry may make students think twice about some of their own safety shortcomings. Featuring Sue Bober, Schaumburg High School, IL. This video is part of the Flinn Scientific Teaching Chemistry video series. http://youtu.be/V-fNpaOX0-g Optional video: The (Lab) Safety Dance An homage to the infamous Chemistry Lab Safety Video produced by the Quigg Lab and set to the dulcet tones of Men Without Hats! http://youtu.be/1_HBM_NwrRE

http://youtu.be/V-fNpaOX0-g

http://youtu.be/1_HBM_NwrRE



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Questions?




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References and Resources

Images:

• Microsoft Office Clip Art: Used with permission from Microsoft.

Textbook(s):

• Mehas, K. Y., & Rodgers, S. L. (2002). Food science: The biochemistry of food and nutrition. New York, NY:

Glenco/McGraw-Hill.

• Ward, J. D., & Ward, L. T. (2013). Principles of food science. Tinley Park, IL: Goodheart-Wilcox Company.

Website:

• Centers for Disease Control

Handwashing: Clean Hands Save Lives

http://www.cdc.gov/handwashing/when-how-handwashing.html

• National Science Teachers Association

NSTA works with other science teaching and education professionals

http://www.nsta.org/

YouTube™:

• Flinn Scientific Laboratory Safety Challenge

Witnessing lab procedures gone awry may make students think twice about some of their own safety shortcomings.

Featuring Sue Bober, Schaumburg High School, IL. This video is part of the Flinn Scientific Teaching Chemistry video

series.

http://youtu.be/V-fNpaOX0-g


presentation notes - keeping it safe in the food science lab · 2014. 12. 3. · author: statewide...

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