1. Properties of matter – 1.2 Boiling point of water (teacher instructions)
Background information on the content and practical information on conducting the “Boiling point of water" experiment.
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Also work out the difference between the evaporation and the boiling of a liquid. If the particle model is known, students should understand that evaporation takes a long time because there is not enough energy for all the particles. At the boiling point, enough energy is supplied to the liquid so that the transition to the gaseous state can proceed spontaneously.
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