Lesson Plan: Solids, Liquids, and Gases Science

This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to identify the three common states of matter and describe and compare the properties of solids, liquids, and gases.


Students will be able to

  • name the three main states of matter,
  • identify the state of matter from images showing the arrangement of particles,
  • describe that molecules are in continuous motion and how this differs between states of matter,
  • explain that there are intermolecular spaces between molecules,
  • recognize that there are attractive forces between molecules,
  • recognize how the attractive forces differ between solids, liquids, and gases,
  • describe how the physical properties differ between solids, liquids, and gases.


Students should already be familiar with

  • atoms and molecules.


Students will not cover

  • exotic states of matter,
  • changes of state,
  • details and names of the attractive forces between molecules,
  • gas pressure.

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