Melt and freeze with this 8-lesson unit plan for Year 3 chemical sciences.

This unit explores sources the properties of solids and liquids and how applying or removing heat leads to a change of state. Students will experience hands-on observations, planning and conducting experiments and using the melting properties or recyclable materials to create a new object.

The unit plan package downloads as a zip file and contains the following resources:

1. Unit Guide: includes a scope and sequence, unit overview, lesson plans with associated resources, science experiments, assessments, rubrics and suggested resources.
2. PowerPoints: a Properties of Solids and Liquids Teaching Presentation, a Melting Point Teaching Presentation and a Solids & Liquids Sort PowerPoint.
3. Displays: a unit banner, solids, liquids & gases posters and word wall cards.

There are opportunities for two assessments included in the unit. The first is incorporated into a guided experiment which investigates creating a fair test and drawing a conclusion. The second concludes the unit giving students the opportunity to demonstrate what they now know about the properties of solids and liquids and how to pose a question to investigate the change of state from a liquid to a solid.