

How do you identify appropriate control measures to reduce risk based on hazard data? What is the difference between a hazard and a risk? What is a risk assessment and control measures? What is the meaning of the hazard symbols? All this and more covered in this comprehensive lesson with questions and answers! This is a Year 13 A level lesson for Edexcel International Unit 5 – WCH15, but it can also be used for all UK exam boards. All the slides in this lesson are fully animated and include answers to every mini plenary question and exam question. The breakdown of the slides (which are best opened on Microsoft PowerPoint) is as follows:
Slide 1 - Title and 5-minute starter. The starter is a grid of four questions entitled ‘last week, last lesson, today’s learning and future learning’. Use this generic slide for all of your lessons by simply changing the questions and the answers each time.
Slide 2 - Lesson objectives (see thumbnail image)
Slide 3 – Introductory statement: When you plan an organic synthesis, you must consider the hazards associated with the reactants, the substance you are synthesising and any intermediates formed.
Slide 4 – What is the difference between a hazard and a risk?
Slide 5 – hazard and risk example – knife being used for eating
Slide 6 – hazard and risk example – knives being used for juggling
Slides 7 – 11: GHS hazard labels with their meanings and a matching activity.
Slide 12 – Introduction to control measures definition
Slides 13 – 14: Two examples of control measures appropriate for two different experiments from the course
Slide 15 - Mini plenary. Two questions to check understanding of control measures
Slides 16 – 24: Exam questions with mark scheme answers (included with the resource)
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