Heating and cooling curves
I can explain the shape of a heating/cooling curve by describing the energy changes through the heating/cooling of a substance.
Heating and cooling curves
I can explain the shape of a heating/cooling curve by describing the energy changes through the heating/cooling of a substance.
These resources will be removed by end of Summer Term 2025.
Lesson details
Key learning points
- An experiment can be planned to measure the temperature change through continuous heating of a substance
- Energy is needed to overcome forces of attraction between particles so temperature does not change when changing state
- The change in state of pure substances can be seen on a heating/cooling curve as a horizontal line
- There is a change of energy, arrangement, and organisation of particles of a pure substance at each stage
Keywords
Heating curve - shows temperature changes of a substance over time as it is heated.
Cooling curve - shows temperature changes of a substance over time as it is cooled.
Intermolecular forces - are forces between particles.
Common misconception
Pupils struggle to understand what is taking place at the horizontal parts of the graph.
Be concise with your language and ask pupils to use the same language. 'have enough energy to overcome the forces of attraction between particles', 'to slide past each other', 'to move past each other'.
To help you plan your year 10 chemistry lesson on: Heating and cooling curves, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your year 10 chemistry lesson on: Heating and cooling curves, download all teaching resources for free and adapt to suit your pupils' needs.
The starter quiz will activate and check your pupils' prior knowledge, with versions available both with and without answers in PDF format.
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The assessment exit quiz will test your pupils' understanding of the key learning points.
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Explore more key stage 4 chemistry lessons from the States of matter unit, dive into the full secondary chemistry curriculum, or learn more about lesson planning.
Licence
Starter quiz
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Exit quiz
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