GCSE Chemistry - States of Matter & Changing State #21

This video explains 'particle theory' and uses it to describe the 3 states of matter: solid, liquid and gas. It also covers how substances move between these states at the particle level. This video is suitable for: - All exam boards - Triple and combined science - Higher and Foundation tiers The last part of the video on the limitations of particle theory is only relevant to higher tier students, but this is labelled with the usual "Higher Tier" box in the top left corner.