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Safety Briefing Safety Briefing

Safety Briefing - PowerPoint Presentation

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Uploaded On 2017-04-15

Safety Briefing - PPT Presentation

Secondary Ones Secondary One Safety Briefing How could this accident have been prevented Throughout the lesson Be serious at all times in the Science laboratory Do not play or tamper with the equipment ID: 537611

briefing safety substance secondary safety briefing secondary substance teacher experiment chemicals report symbols hazard waste hands glass fire broken plenty chemical radioactive

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Slide1

Safety Briefing

Secondary OnesSlide2

Secondary One – Safety Briefing

How could this accident have been prevented?Slide3

Throughout the lesson

Be serious at all times in the Science laboratory. Do not play or tamper with the equipment.

Keep your desk clean and tidy.

Before you begin the experiment

Prepare all apparatus and arrange them such that you will not knock them over while doing the experiment.

Laboratory rules

Secondary One – Safety BriefingSlide4

During the experiment

Never smell or taste chemicals unless your teacher grants permission.

Wear goggles when heating or mixing reactive chemicals.

Never handle broken glass apparatus with your bare hands. Inform your teacher and use a broom and dustpan to remove the broken glass.

Secondary One – Safety BriefingSlide5

After the experiment

Dispose of waste materials in proper waste bins.

Never throw solids or corrosive liquids in the sink.

Wash your hands thoroughly when the experiment is completed.

Failure to observe any of these safety precautions can lead to accidents such as a fire.

Secondary One – Safety BriefingSlide6

What should you do if a chemical spillage occurs?

If any chemicals spilled onto other parts of your body or clothing, wash it with plenty of water.

Report the spill to your teacher.

If any chemical accidentally gets in your mouth, spit it out into a basin immediately. Rinse your mouth with plenty of water and report it to your teacher.

Report all accidents, breakage and spillage to your teacher immediately.

Secondary One – Safety BriefingSlide7

Hazard symbols are used to label harmful chemicals.

Here are some common hazard symbols to look out for:

Explosive

Substance will react violently when heated or struck.

E.g. flash powder

Corrosive

Substance will eat away other substances.

E.g. sulfuric acid, potassium hydroxide, calcium oxide

Hazard symbols

Secondary One – Safety BriefingSlide8

Radioactive

Substance emits radiation.

E.g. radioactive carbon, uranium

Flammable

Substance catches fire easily.

E.g. petrol, kerosene, alcohol, hydrogen

Biohazardous

Poisonous substance of a biological nature.

E.g. medical waste such as blood and urine samples, micro-organism, virus or toxin

Secondary One – Safety BriefingSlide9

Irritant

Substance produces vapours or fumes which irritate the eyes, nose and throat.

E.g. phenol, chloroform

Toxic

Substance is harmful in small doses.

E.g. methanol, cyanide, mercury, carbon monoxide, chlorine

Secondary One – Safety BriefingSlide10

Secondary One – Safety Briefing

Now to do Worksheet 1.3 in your Theory Workbook.