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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 12 A level lesson for Edexcel International Unit 1 – WCH11, 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 your lessons by simply changing the questions and the answers each time.
Slide 2 - Lesson objectives (see thumbnail image)
Slide 3 – IGCSE recap quiz about crude oil. Answers animate on to the screen when you click
Slide 4 – Hinge question: what are most of the hydrocarbons in crude oil used for?
Slides 5 – 7: Fractionating column, which shows that most of the hydrocarbons are used for fuel
Slides 8 – 9: A very important point is raised here: A specific fraction from crude oil is still a mixture of compounds with a range of boiling points
Slide 10 – Introduction to the 3 ways that crude oil can be converted to fuel (fractional distillation, cracking and reforming)
Slides 11 – 14: Fractional distillation word fill exercise – answers animate when you click
Slide 15 – Cracking supply and demand graph
Slides 16 – 19: Cracking word fill exercise – answers animate when you click
Slides 20 – 25: Cracking conditions and equations
Slides 26 – 27: Reforming alkanes
Slides 28 – 35: Exam questions with mark scheme answers (included with the purchase of this resource)

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