Unit 9 · Measurement of temperature

Effect of Heat on Volume Presentation

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Science and Technology, Grade 10 · Heat

Effect of Heat on Volume

Expansion and contraction · Anomalous expansion of water

By the end of this lesson you can

🔥

Explain why matter expands on heating

❄️

Explain why matter contracts on cooling

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Describe the anomalous expansion of water

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Explain why fish survive and pipes burst in winter

Particles in the three states

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Solid: close, fixed pattern, vibrating in place

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Liquid: close but able to slide past

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Gas: far apart, moving fast everywhere

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Presenter notes: Today we find out why things change size when they are heated or cooled, and why water refuses to follow the same rule as everything else.