5.1.8 Inside Particles AQA Activate Matter Year 7 Chemistry Science Students learn about Atoms, Elements, Compounds, Mixtures Skittles practical modeling

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5.1.6 Diffusion KS3 AQA Activate Matter year 7 Chemistry Physics Science

5.1.5 More Changes of State KS3 AQA Activate Lesson year 7 Matter Chemistry Physics Science

5.1.4 Boiling KS3 Activate AQA Matter lesson year 7 Practical lesson Chemistry Physics Science

5.1.3 Melting and Freezing KS3 Activate AQA Science Year 7 Matter Practical Lesson cooling curve

5.1.1 The Particle Model KS3 Activate AQA Science Year 7 Matter 5.1.2 States of Matter Lesson