Grade 8: Section 1.1 WHMIS Symbols & Safety

Last updated 21 days ago

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Canada has aligned the Workplace Hazardous Materials Information System (WHMIS) with the Globally Harmonized System of Classification and Labeling of Chemicals (GHS).

https://www.ccohs.ca/oshanswers/chemicals/whmis_ghs/pictograms.html 
Use this link for a detailed list of the newer WHMIS symbols.

Old Symbols

WHMIS

Lab Safety Rules

The first thing you should do if you break something during a lab is:

cover it up

pretend you didn't do it

clean it up 

tell the teacher

Which of the following is NOT a lab rule

remove clutter from lab station (no extra books, binders)

tie long hair up during labs

finish labs as quickly and carelessly as possible

never eat or drink during a lab

What should you do with chemicals once you’ve completed the lab?

take them home

pour them back into the chemical container they came from to save materials

pour them into the designated waste container that your teacher told you about before the lab started

pour them down the drain carefully with water

During an experiment you are instructed to smell a chemical. What is the correct procedure?

Heat the chemical and then smell it.

Stick your nose close to the container and breathe deeply.

Point the container away from your face while you use your hand to fan the air above the test tube toward your nose (waft it).

The following footwear is best in the laboratory:

sandals

shoes appropriate for the weather

shoes that cover the whole foot

When you finish working with chemicals, biological specimens, and other lab substances, always

lick your fingers

wipe your hands on your clothes

wash your hands thoroughly with soap and water

Before you touch an electrical switch, plug, or outlet

your hands must be dry

the cord must be frayed (wires exposed)

ask the custodian

To prevent accidents during lab you should:

hurry ahead of others

ask someone else to do the work

follow your teacher's directions

use shortcuts

The most important thing in laboratory experiments is:

getting the answer right

finishing first

safety

You have been injured in the laboratory (cut, burn, etc.). First you should

go to the bathroom

ignore it until after school

tell the teacher

snap chat it

In order to find out all the information about a chemical you should refer to:

the safety data sheet (SDS) / material safety data sheet (MSDS)

your friend

A good way to identify an unknown substance is to taste it.

True

False

Loose clothing is preferable during labs because you can get out of them faster.

True

False

When collecting your chemicals, you should take only what is needed and leave the original container at the front of the class.

True

False

Anytime you are working with Chemicals you must wear safety goggles.

True

False

It is the students responsibility to clean up their lab area after an experiment

True

False

Playing around during a science experiment is ok to do.

True

False

For our purposes, safety symbols can be divided into two categories: hazardous household product symbols (HHPS) and workplace hazardous materials information system (WHMIS) symbols.

True

False

Why should materials/substances have hazard labels on them? Give a specific example from a product you viewed in class or one you know of from your house.

Some of the students are not following proper safety procedures in the picture below. Identify and list the problems in a table. Then suggest a better, safer way to perform each action.

This WHMIS Symbol represents:

The first thing you should do if you break something during a lab is:

cover it up

pretend you didn't do it

clean it up 

tell the teacher

Which of the following is NOT a lab rule

remove clutter from lab station (no extra books, binders)

tie long hair up during labs

finish labs as quickly and carelessly as possible

never eat or drink during a lab

What should you do with chemicals once you’ve completed the lab?

take them home

pour them back into the chemical container they came from to save materials

pour them into the designated waste container that your teacher told you about before the lab started

pour them down the drain carefully with water

During an experiment you are instructed to smell a chemical. What is the correct procedure?

Heat the chemical and then smell it.

Stick your nose close to the container and breathe deeply.

Point the container away from your face while you use your hand to fan the air above the test tube toward your nose (waft it).

The following footwear is best in the laboratory:

sandals

shoes appropriate for the weather

shoes that cover the whole foot

When you finish working with chemicals, biological specimens, and other lab substances, always

lick your fingers

wipe your hands on your clothes

wash your hands thoroughly with soap and water

Before you touch an electrical switch, plug, or outlet

your hands must be dry

the cord must be frayed (wires exposed)

ask the custodian

To prevent accidents during lab you should:

hurry ahead of others

ask someone else to do the work

follow your teacher's directions

use shortcuts

The most important thing in laboratory experiments is:

getting the answer right

finishing first

safety

You have been injured in the laboratory (cut, burn, etc.). First you should

go to the bathroom

ignore it until after school

tell the teacher

snap chat it

In order to find out all the information about a chemical you should refer to:

the safety data sheet (SDS) / material safety data sheet (MSDS)

your friend

A good way to identify an unknown substance is to taste it.

True

False

Loose clothing is preferable during labs because you can get out of them faster.

True

False

When collecting your chemicals, you should take only what is needed and leave the original container at the front of the class.

True

False

Anytime you are working with Chemicals you must wear safety goggles.

True

False

It is the students responsibility to clean up their lab area after an experiment

True

False

Playing around during a science experiment is ok to do.

True

False

For our purposes, safety symbols can be divided into two categories: hazardous household product symbols (HHPS) and workplace hazardous materials information system (WHMIS) symbols.

True

False

This WHMIS Symbol represents:

Oxidizing hazard.

May cause less serious health effects or damage the ozone layer.

Corrosive damage to metals, skin and eyes.

May cause damage to the aquatic environment.

May cause or suspected of causing serious health effects.

Fire hazard.

Explosion or reactivity hazard.

Can cause death or toxicity with short exposure to small amounts.

Gases under pressure.

Biohazardous Infectious Materials - for organisms or toxins that can cause diseases in people or animals.

This WHMIS Symbol represents:

Oxidizing hazard.

Explosion or reactivity hazard.

May cause damage to the aquatic environment.

Biohazardous Infectious Materials - for organisms or toxins that can cause diseases in people or animals.

Fire hazard.

Can cause death or toxicity with short exposure to small amounts.

Gases under pressure.

May cause less serious health effects or damage the ozone layer.

Corrosive damage to metals, skin and eyes.

May cause or suspected of causing serious health effects.

This WHMIS Symbol represents:

Explosion or reactivity hazard.

May cause less serious health effects or damage the ozone layer.

Fire hazard.

May cause or suspected of causing serious health effects.

May cause damage to the aquatic environment.

Oxidizing hazard.

Biohazardous Infectious Materials - for organisms or toxins that can cause diseases in people or animals.

Corrosive damage to metals, skin and eyes.

Gases under pressure.

Can cause death or toxicity with short exposure to small amounts.

This WHMIS Symbol represents:

May cause damage to the aquatic environment.

Explosion or reactivity hazard.

Can cause death or toxicity with short exposure to small amounts.

May cause less serious health effects or damage the ozone layer.

Fire hazard.

Gases under pressure.

Corrosive damage to metals, skin and eyes.

May cause or suspected of causing serious health effects.

Oxidizing hazard.

Biohazardous Infectious Materials - for organisms or toxins that can cause diseases in people or animals.

This WHMIS Symbol represents:

May cause less serious health effects or damage the ozone layer.

May cause or suspected of causing serious health effects.

Fire hazard.

Can cause death or toxicity with short exposure to small amounts.

Explosion or reactivity hazard.

Gases under pressure.

May cause damage to the aquatic environment.

Oxidizing hazard.

Corrosive damage to metals, skin and eyes.

Biohazardous Infectious Materials - for organisms or toxins that can cause diseases in people or animals.

This WHMIS Symbol represents:

Can cause death or toxicity with short exposure to small amounts.

May cause or suspected of causing serious health effects.

Gases under pressure.

Biohazardous Infectious Materials - for organisms or toxins that can cause diseases in people or animals.

Oxidizing hazard.

May cause damage to the aquatic environment.

Corrosive damage to metals, skin and eyes.

Explosion or reactivity hazard.

May cause less serious health effects or damage the ozone layer.

Fire hazard.

This WHMIS Symbol represents:

Corrosive damage to metals, skin and eyes.

Can cause death or toxicity with short exposure to small amounts.

Gases under pressure.

May cause or suspected of causing serious health effects.

Biohazardous Infectious Materials - for organisms or toxins that can cause diseases in people or animals.

Explosion or reactivity hazard.

May cause less serious health effects or damage the ozone layer.

Oxidizing hazard.

Fire hazard.

May cause damage to the aquatic environment.

This WHMIS Symbol represents:

May cause damage to the aquatic environment.

May cause or suspected of causing serious health effects.

Fire hazard.

Oxidizing hazard.

Explosion or reactivity hazard.

Corrosive damage to metals, skin and eyes.

Can cause death or toxicity with short exposure to small amounts.

May cause less serious health effects or damage the ozone layer.

Biohazardous Infectious Materials - for organisms or toxins that can cause diseases in people or animals.

Gases under pressure.

This WHMIS Symbol represents:

Explosion or reactivity hazard.

May cause less serious health effects or damage the ozone layer.

Oxidizing hazard.

Gases under pressure.

Corrosive damage to metals, skin and eyes.

May cause damage to the aquatic environment.

Can cause death or toxicity with short exposure to small amounts.

Biohazardous Infectious Materials - for organisms or toxins that can cause diseases in people or animals.

Fire hazard.

May cause or suspected of causing serious health effects.

This WHMIS Symbol represents:

Corrosive damage to metals, skin and eyes.

Explosion or reactivity hazard.

Fire hazard.

May cause damage to the aquatic environment.

Biohazardous Infectious Materials - for organisms or toxins that can cause diseases in people or animals.

Gases under pressure.

Oxidizing hazard.

May cause less serious health effects or damage the ozone layer.

May cause or suspected of causing serious health effects.

Can cause death or toxicity with short exposure to small amounts.