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Why does beryllium and magnesium flame test have no colour? What produces the colour in a flame test? What is the test for ammonium ions? 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 2 – WCH12, 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 – Hinge question: How do you write a method to do a flame test?
Slide 4 – Method present to students step-by-step, including the justification for the use of hydrochloric acid
Slides 5 – 7: Table with all the colour descriptions that the students need to know for the different cations. Print slides 6 – 7 for them.
Slides 8 – 10: This section explains what produces the colour of the flame tests and also why some cations produce no colour at all, e.g. beryllium and magnesium
Slide 11 – learning pit-stop to check students’ learning. A series of questions of increasing difficulty, with the stretch and challenge (S+C) being the hardest. Answers animate onto the screen when you click
Slides 12 – 14: Explanation of the test for the ammonium ion
Slides 15 – 22: Exam questions with mark scheme answers (included with the purchase of this resource)

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