What are solids and liquids? A Lesson for Years 3/4


Summary of Lesson Plan:

This lesson provides students with the opportunity to develop an understanding of the relationship between solids and liquids through a real world learning context. This lesson was designed for a year 3 class, it has been tested and worked well with high student engagement.

Australian Curriculum Links:

Year 3 Science Understanding:

  • A change of state between solid and liquid can be caused by adding or removing heat (ACSSU046)
  • AC Elaborations:
    • investigating how liquids and solids respond to changes in temperature, for example water changing to ice, or melting chocolate.
    • exploring how changes from solid to liquid and liquid to solid can help us recycle materials.
    • predicting the effect of heat on different materials.


Lesson Plan Sequence:

*** Please note that this lesson sequence is supported through the use of a Powerpoint presentation ***

  1. Show the students the solid and liquids power point provided.
  2. Complete the experiment with instructions on the Powerpoint.
  3. Ask the students to write a small summary of the experiment.
  4. Have students complete the solids and liquids worksheet (repeat the Powerpoint if required)
  5. Have students exchange papers with the person next to them and mark the questions (you are provided with an answer sheet).
  6. Discuss with  the student the learning that has taken place around transforming a solid to a liquid and back to a solid. What changed the state of the matter?


Assessment Ideas:

  • Anecdotal notes on students
  • Collect worksheets to check understanding.
  • Students record their findings using a digital device and share with class.



Download all of the lesson-related resources below:




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