Hazards and risks

Question 1

what can a hazard cause? (3)

Answer 1

• cause harm to someone
• cause damage to something
• cause adverse health effects

Question 2

what are hazard symbols used for?

Answer 2

• indicate the dangers associated with the substance inside

- gives information on how to work safely with the substance (in the laboratory)

Question 3

moderate health hazard:

Answer 3

causes skin irritations

Question 4

serious health hazard:

Answer 4

causes breathing difficulties

Question 5

toxic:

Answer 5

could cause death if swallowed or inhaled

Question 6

corrosive:

Answer 6

damages skin and clothing

Question 7

flammable:

Answer 7

catches fire easily

Question 8

oxidising:

Answer 8

makes flammable substances burn more fiercely

Question 9

harmful to the environment:

Answer 9

could cause damage to animal and plant life

Question 10

what is a hazard?

Answer 10

something that has the potential to cause harm or damage

Question 11

what is risk?

Answer 11

the chance that a hazard will cause harm

Question 12

what factors should you consider when evaluating a risk? (3)

Answer 12

• the way the hazard causes harm
• how likely it is that someone or something will be exposed to the hazard
• how serious the effects of the hazard could be

Question 13

what is important to do before a practical?

Answer 13

-evaluate the risks in a practical procedure, and suggest suitable precautions to reduce the risk of harm.

Question 14

what is a precaution?

Answer 14

something that can be done to reduce a risk of harm

Question 15

what does a risk assessment do?

Answer 15

-describes the hazards and risks of harm, and what suitable precautions are needed to work more safely.

Question 16

different types of precautions (3)

Answer 16

• using less hazardous substances
• wearing eye protection, protective gloves or other protective clothing
• choosing different apparatus or a different method