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Physical Changes - Coggle Diagram
Physical Changes
Year 7 Recap
Particle Model
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all substances are made up of tiny, hard particles that are too small to see
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Particles are attracted to each other. Closer they are, the stronger the attraction
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Liquids
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strong bond, but loose enough to slip over each other
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Expansion & Contraction
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Gas Expansion
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travel faster - hit side of balloon, frequently 7 forcibly
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Appearance changes, but not chemical makeup
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