Solids, liquids and gases

7 October 2020

The particle theory is used in physics lessons to explain the properties of solids, liquids and gases; the strength of bonds (attractive forces) between particles is different in all three states.

This theory helps us to explain how solids, liquids and gases behave and Miss Plancke’s Year 7 class put this to the test recently with a number of experiments.

Miss Plancke said, “In the Particles' unit taught at Key Stage 3, students are learning about the different states of matter, and how solids, liquids and gases can expand or contract depending on the temperature; my class of students investigated the expansion of liquids when heated up.”