This introductory lesson revisits the particle model, strengthening pupils’ understanding of how particles behave in solids, liquids and gases. Clear diagrams, visual modelling and accessible explanations help students rebuild the foundations needed for later density calculations and practical investigations. Pupils explore how particle spacing links directly to a substance’s density, preparing them for the mathematical and practical work in later lessons.
The lesson includes a PowerPoint and worksheet (no specific details mentioned), with a strong focus on scientific vocabulary, misconceptions and visual learning.
What Students Will Learn
How particles behave in solids, liquids and gases
How the particle model explains changes of state
How particle spacing affects density
Why different materials have different densities
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£2.00