Theme B · Particulate Nature of Matter

Thermal & Atmospheric

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  Y10 Prereq

  Heat, States & Specific Heat (IGCSE)

  ~30 min·compact refresher

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  Y10 Prereq

  Density, Pressure & Floating (IGCSE)

  ~30 min·compact refresher

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  Thermal Energy Transfers — Temperature, Heat, Phase Change & the Three Modes

  ~42 min·practice inside

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  The Greenhouse Effect — planetary energy balance from first principles

  ~38 min·practice inside

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  Gas Laws & Kinetic Theory — pressure, volume, temperature, and the particles behind them

  ~45 min·practice inside

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Electric circuits

Finish every section in Chapter 1 to unlock.

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  Y10 Prereq

  Electricity Basics (IGCSE)

  ~32 min·compact refresher
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  Electric Current & Circuits — charge, voltage, resistance, power, and how to compute any circuit

  ~45 min·practice inside
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  Thermodynamics — internal energy, the first law, the second law, and Carnot efficiency

  ~45 min·practice inside

Paper-2 structured practice

Finish every section in Chapter 2 to unlock.

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  Thermal & Circuits — Paper-2 Set

  ~28 min·practice inside