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Last updated

27 March 2025

pptx, 13.45 MB
pptx, 13.45 MB

This GCSE Physics PowerPoint presentation provides a comprehensive and engaging lesson on changes of state, designed specifically for AQA GCSE Combined Science Physics. It covers how substances transition between solid, liquid, and gas, and explains how energy transfer and particle behavior are involved in each change of state. The resource also helps students interpret heating and cooling curves, describe the characteristics of pure substances, and understand key terms such as melting point and boiling point.

A change of state is a physical process in which a substance alters its form due to energy changes, without changing its chemical composition. This lesson covers melting, freezing, boiling, evaporation, condensation, sublimation, and deposition. It explains that during these changes, the temperature may remain constant as energy is used to break or form intermolecular bonds, and the mass of the substance is conserved throughout.

The presentation includes starter questions, interactive diagrams, and student tasks, such as labelling particle diagrams and completing heating curve graphs. Special attention is given to the difference between boiling and evaporation, the effect of impurities on melting/boiling points, and a practical investigation using stearic acid to produce a cooling curve.

Students are guided through the practical with a detailed method, risk assessment, data collection table, and graphing activity. There are also fill-in-the-gap tasks, extended questions with model answers, and critical thinking tasks, encouraging students to describe particle behavior at different stages of state changes.

The PowerPoint (.pptx) is fully editable, allowing teachers to adapt the lesson to suit the needs of their class.

Last updated: March 2025.

This is a high-quality, curriculum-aligned resource ideal for teachers and students wanting to build a strong understanding of changes of state in physics. Download now to enhance your lessons!

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A bundle is a package of resources grouped together to teach a particular topic, or a series of lessons, in one place.

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AQA GCSE Combined Science Physics: Particle Model of Matter: 5 PowerPoint Lessons

This resource bundle contains five PowerPoint lessons based on the AQA GCSE Combined Science Physics topic: Particle Model of Matter. Each lesson includes clear explanations, engaging visuals, real-world examples, and carefully structured activities. It is ideal for use in class, for revision, or for home learning. The particle model of matter explains the behavior and properties of solids, liquids, and gases in terms of how particles are arranged and how they move. This model underpins key physical concepts like changes of state, density, pressure, and temperature, helping students understand phenomena such as floating and sinking, heating and cooling curves, and gas behavior under different conditions. The bundle includes the following editable PowerPoint files: Lesson 1: States of Matter – Introduces solids, liquids, and gases, including particle diagrams and particle arrangement. Lesson 2: Changes of State – Covers melting, boiling, condensation, evaporation, freezing, sublimation, and includes explanations of heating/cooling curves and conservation of mass. Lesson 3: Density – Explains what density is and how it’s calculated, using the density formula with examples and practice questions. Lesson 4: Required Practical – Density – A full practical lesson with step-by-step methods for calculating the density of regular solids, irregular solids and liquids, using apparatus such as measuring cylinders and displacement cans. Lesson 5: Gas Pressure and Temperature – Explores the relationship between temperature and pressure using the particle model, including Brownian motion and a pressure-temperature demonstration. Features of the bundle: Starter activities to activate prior knowledge Visual diagrams and explanations Key vocabulary and definitions Calculation practice and worked examples Application tasks and review questions Opportunities for graphing and data analysis Editable PowerPoint (.pptx) format Last updated: March 2025. This bundle is ideal for physics teachers looking for a clear, well-sequenced resource that builds understanding of the particle model and its real-world applications. Download now to enhance your lessons with confidence.

£5.99

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