51ºÚÁÏ

What is a giant lattice? What is the difference between a crystalline and amorphous solid? Why does aluminium have a higher melting point than magnesium? 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 – Two hinge questions: What is a crystal? What is a lattice?
Slide 4 – Follow-on question: What is a giant lattice?
Slide 5 - Introduction to the four types of lattice structure (giant metallic, giant ionic, giant covalent and simple molecular)
Slide 6 – definition of a giant metallic lattice
Slides 7 – 8: Word fill for definition of metallic bond. Answers animate onto screen when you click
Slide 9 - exploration of the high melting point of metals. Explanation is also offered as to why smaller cations have higher melting points and more delocalised electrons per cation result in higher melting temperatures
Slides 10 – 11: Explanation of why metals conduct electricity and heat
Slide 12 - 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 13 – 15: why are ionic solids brittle, but metals are malleable/ductile? This is explained fully for the students
Slides 16 – 21: Exam questions with mark scheme answers (included with the purchase of this resource)

If you have a positive experience with the resource please leave a positive review! This really helps promote our store! Thanks!