Some students think that when air is heated the particles expand and cause high pressure

Properties of Matter


Diagnostic Resources

The following worksheets may help to identify whether students hold this particular misconception.

For more information, see the University of York BEST website.

Resources to address this

  • Change of volume: water to water vapour  (16-19)

    In the previous episode, we looked at the macroscopic behaviour of a gas, in terms of its temperature, pressure and volume. Now we can go on to relate this behaviour to the underlying microscopic behaviour of the particles of which the gas is made.

    View Resource


  • Ayas, A., Özmen, H. and Calik, M., () Students' Conceptions of the Particulate Nature of Matter at Secondary and Tertiary Level, International Journal of Science and Mathematics Education, 8, 165-184.

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