This lesson is designed for the NEW AQA Trilogy Physics GCSE, particularly the 'Molecules & Matter’ SoW.
 
This lesson begins with a recap on ‘Latent Heat’, including a definition and task which requires students to sketch a temperature-time graph of ice which has been taken out of the freezer and heated at a constant rate for a period of time. They will then need to match a set of statements to stages shown on the graph, this task will then be self-assessed using the mark scheme provided.
 
Students are then introduced to the idea of ‘Specific Latent Heat of Fusion’ - firstly students are given a description of what this tells us about a substance and then also the calculation. Students can take notes on this in their books, the next task then requires students to rearrange the equation they have been given to work out either energy (J) or mass (kg). Once students have discussed their ideas, the answers can be revealed and then pupils can work their way through a set of problems. This work can then be self-assessed using the mark scheme included in the PowerPoint.
 
The next part of the lesson now focuses on ‘Specific Latent Heat of Vaporisation’ - students are again given a description of what this tells us about a substance and also the calculation is provided.
 
Students can take notes and also try to rearrange the equation in order to make energy or mass the subject. Students can discuss their ideas, the answers are revealed and they will then use these calculations to work their way through a set of problems.
 
Lastly, students will watch a video and will need to answer a set of questions whilst watching, this work can be checked against the answers provided. Then the very last task is a past-paper question on the topic, students can self-assess or peer-assess their work on this topic.
 
The plenary requires pupils to write a WhatsApp message to a friend, explaining what they have learned this lesson.