Revision 2
Hazards, Risk and Marine Products
Lesduur is: 30 minOnderdelen in deze les
Hazards, Risk and Marine Products
This lesson links basic safety language to examples from the marine sector of engineering.
Learning goal
I can define a hazard, explain how risk is evaluated, and name two products made by the marine sector of engineering.
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What words do you link with hazards at work?
Use this to activate prior knowledge. Expect words such as danger, injury, fire, spill, wires, tools, warning, and safety.
What is a hazard?
A hazard is something with the potential to cause harm.
It is a possible source of danger, not the harm itself.
Emphasise the difference between a hazard and an accident. A hazard is the danger that could lead to harm.
Hazard means possible harm
A hazard can be any potential threat to:
people
machinery
the environment
In engineering, hazards must be spotted before work begins.
Students may only think hazards affect people. Point out that damage to equipment and the environment also matters in engineering.
Examples of hazards
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Examples of hazards
wet floors
exposed wires
moving machinery
fuel leaks
sharp tools
Use these as simple examples to make the definition concrete. Link them back to the idea of potential harm.
Hazard or harm?
Hazard: a fuel spill on the deck
Harm: a fire, injury, or pollution caused by it
The hazard is the source of danger.
The harm is the result.
This contrast is important because students often mix up the source of danger with the outcome.
Which example is a hazard, not harm?
A fire on deck
A fuel spill
An injured worker
Pollution at sea
Checks the key contrast from slides 2 to 5. A fuel spill is the source of danger; the others are results of harm.
Complete the safety summary
A hazard is something with the potential to cause harm. It can be a threat to people, machinery, or the environment. A fuel spill is a hazard, but a fire caused by it is harm.
Echoes the exact lesson wording while checking that students can distinguish source of danger from result.
How is risk evaluated?
Risk is judged by looking at:
likelihood of occurrence
severity or potential impact
number of people involved
These factors help engineers decide how serious a situation is.
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Likelihood of occurrence
Likelihood means how likely it is to happen.
a rare event has lower likelihood
a frequent event has higher likelihood
repeated exposure can increase concern
Keep the language simple: likelihood is about chance or probability, not the size of the harm.
Severity or potential impact
Severity means how serious the harm could be.
minor damage or small injury = lower severity
major injury, large damage, or pollution = higher severity
Connect severity to engineering consequences: injury to workers, damage to equipment, and environmental impact.
Number of people involved
Risk also depends on how many people may be affected.
A hazard that could harm several workers is treated more seriously than one affecting only one person.
You can add that crowded areas or shared workspaces often need stronger control measures because more people are exposed.
Putting risk factors together
Higher likelihood + higher severity + more people involved → higher risk
Lower likelihood + lower severity + fewer people involved → lower risk
This is a simple summary model, not a full formal risk matrix. Keep the focus on the three factors named in the lesson input.
Which factor is about how serious the harm could be?
Likelihood
Exposure
Severity
Frequency
Severity is the lesson term. Likelihood is about chance, not size of harm.
Complete the risk explanation
Risk is judged by looking at the likelihood of occurrence, the severity of the possible harm, and the number of people involved. Higher levels of these factors usually mean higher risk.
Checks recall of the three risk factors and the summary relationship from slide 10.
The marine sector of engineering
The marine sector designs and builds products used on or under water.
It is an important part of the engineering industry.
This slide introduces the final subtopic and keeps it rooted in engineering rather than transport in general.
Products from the marine sector
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Products from the marine sector
Examples include:
ships
yachts
submarines
jet skis
oil rigs
You could mention that other correct examples from the list are submarines, jet skis, and oil rigs.
Which pair are both marine engineering products?
Submarine and yacht
Bridge and tunnel
Crane and robot
Engine and spanner
Uses one correct pair and three plausible engineering-related distractor pairs to keep the focus on the marine sector.
Fill in the blanks
A hazard is something with the potential to cause harm. This can be any potential threat to people, machinery or the environment.
Risk is judged by looking at the likelihood of occurrence, the severity of the possible harm, and the number of people involved. Higher levels of these factors usually mean higher risk.
The marine sector designs and builds products used on or under water. Products of the marine sector are ships, yachts, submarines, jet ski and oil rigs.
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Name two marine products.
Expected answer elements: products used on or under water, such as ships, yachts, submarines, jet skis, or oil rigs. Accept any two correct examples.
What is one thing you learned today?
Reflection prompt with no right answer. Invite students to mention hazard, risk factors, or marine products.
What helped you understand this lesson best?
Reflection prompt with no right answer. Encourage students to think about which explanation, example, or activity supported them most.
