Lab Safety. Lesson Objectives: Explain and demonstrate standards for conducting safe laboratory and field investigations. Identify safety equipment.

Lab Safety

Lesson Objectives: Explain and demonstrate standards for

conducting safe laboratory and field investigations.

Identify safety equipment and its use. Explain how to use safety equipment. Explain why safety is important in

science. Practice appropriate use and

conservation of resources, including disposal, reuse, or recycling of materials.

Essential Question:

What tools and safety standards do

scientists use in scientific

investigations?

Language Objectives:

Communicate lab safety procedures with small learning groups using content and academic vocabulary acquired through the use of pre-reading supports such as graphic organizers and visuals.

• Standards (TEKS):• 6.1A: demonstrate safe practices

during laboratory and field investigations as outlined in the Texas Safety Standards.

• 6.1B: practice appropriate use and conservation of resources, including disposal, reuse, or recycling of materials.

• 6.4B use preventative safety equipment, including chemical splash goggles, aprons, and gloves, and be prepared to use

• emergency safety equipment, including an eye/face wash, a fire blanket, and a fire extinguisher.

Read all instructions Listen carefully to directions Ask questions when you do not understand

KNOW WHERE TO LOCATE THE FOLLOWING:                   •EYEWASH STATION                                 •FIRE BLANKET

•TWO EXITS                                                                           •FIRE EXTINGUISHER

SAFETY GOGGLES AND APRONS            

Johnny was a Chemist;Johnny is no more.What he thought was H2O

Was H2SO4

If instructed to do so by the teacher you may hold the chemical away from you and waft the fumes towards you

This symbol appears to warn you that chemical can react with and destroy tissue and other materials.

Avoid organisms or other biological hazards such as bacteria, fungi, teeth, blood, tissues, etc. that might be harmful to humans.

•

Lab Safety Challenge #1

T. Trimpe 2008 http://sciencespot.net/

What’s wrong? Identify 6 different safety concerns shown in the picture below.

Image: http://morrisonlabs.com/lab_safety.htm

The answers are …

Image: http://morrisonlabs.com/lab_safety.htm

Don’t eat or drink while in the lab.

Don’t fool around during a lab.

Always wear safety goggles when doing

an experiment

Always point test tubes and other items away from yourself and

others when heating.

Keep hair and other flammable objects away from flames.

Don’t leave a flame unattended.

Lab Safety Challenge #2

T. Trimpe 2008 http://sciencespot.net/

What’s wrong? Identify 9 different safety concerns shown in the picture below.

Image: http://morrisonlabs.com/lab_safety.htm

The answers are …

Image: http://morrisonlabs.com/lab_safety.htm

Always wear safety goggles during a lab.

Don’t leave materials laying

on the floor.

Clean up spills immediately

Don’t heat closed containers.

Keep your lab area neat and clean.

Unplug equipment when not in use.

Don’t place lab materials near the edge of the table.

Keep papers and other flammable objects away

from flames.

Don’t smell directly from a container - WAFT.

Science Safety

T. Trimpe 2008 http://sciencespot.net/

Can you unscramble all the phrases below?Hint: They are all related to safety.

1. R A W E O L G E G S G

2. F W T A, not F W F H I

3. S H A W O R U Y N H A S D

4. L O F L W O I E C R D I T O N S

5. O D T N’ O L F O R U O N A D

The answers are ...

1. R A W E O L G E G S G

2. F W T A, not F W F H I

3. S H A W N H A S D

4. L O F L W O I E C R D I T O N S

5. O D T N’ O L F O R U O N A D

WEAR GOGGLES

WAFT, not WHIFF

WASH YOUR HANDS

FOLLOW DIRECTIONS

DON’T FOOL AROUND

Challenge 1

L. LaRosa http://www.middleschoolscience.com for T. Trimpe 2008 http://sciencespot.net/

Flammable Explosive Corrosive Poison

Images from http://www.cpsc.gov/CPSCPUB/PUBS/NIOSH2007107.pdf

Challenge 2

L. LaRosa http://www.middleschoolscience.com for T. Trimpe 2008 http://sciencespot.net/

Images from http://chemistry.about.com/od/healthsafety/ig/Laboratory-Safety-Signs/

Biohazard Radioactivity Oxidizing Fire Extinguisher

21 3

1 2 3

1. Being prepared to participate in lab means you should:

a. __________ b. __________ c. __________  2. What are two things you should not do

in the science room unless you are told it is safe to do so?

 3. Why should you hold a chemical away from you and waft the fume towards you if you have been instructed to smell it?

1. Who is responsible for cleaning up when you finish your lab activity?

2. Before doing a science experiment in which you are using chemicals, you should put on _____ and _____.

  3. What precautions should you take

when using a lit candle?  

1. When you see something dangerous or hazardous, what should you do?

  2. Explain why you shouldn't place a

stopper on glassware containing chemicals unless you have been told to do so.

  3. Why is it important to keep your work

area neat and orderly during lab activities?  

1. Which of the precautions should you take when working with unknown chemicals?

  2. You arrive to class, the door is open, but

Mrs. Wolff is not in the room. What should you do?

  3. You have read the lab instructions twice,

but you are still unsure about what you are expected to do. What should you do?

Game to practice identifying symbols by name: http://quizlet.com/2559520/spacerace/