An activity to demonstrate what happens to a variety of liquids when heat is removed.
Cooling decreases the temperature of a substance. If the temperature is decreased enough, this can lead to a change of state
In this activity, students predict, observe and record what happens to liquids of varying consistencies when heat is removed. The liquids are placed in the freezer and observed after two hours, then after four hours.
Discussion questions are also provided.
Australian Curriculum alignment
A change of state between solid and liquid can be caused by adding or removing heatElaborationsinvestigating how liquids and solids respond to changes in temperature, for example water changing to ice, or melting chocolate (Skills: Numeracy, Critical...
Represent and communicate observations, ideas and findings using formal and informal representations
Compare results with predictions, suggesting possible reasons for findings
With guidance, identify questions in familiar contexts that can be investigated scientifically and make predictions based on prior knowledge
Use a range of methods including tables and simple column graphs to represent data and to identify patterns and trends
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