Changes of state

A description of melting, evaporation and sublimation.

Changes of the state of water

A description of evaporation and condensation of water as it changes state.

Conduction, convection and radiation

A glass of iced water in the sun is used to illustrate three types of thermal transfer.

Filtration and distillation

Demonstrates how to separate sand and salt from water by filtration and distillation.

Particle models of solids, liquids and gases

Description of the particle arrangements in solids, liquids and gases.

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