Does a bag of ice lose mass as the ice melts? Pupils weigh a sealed sample, use particle drawings to explain their observations and work out how a few droplets outside the bag could change their result.
The editable PowerPoint is accompanied by a lesson plan and printable practical sheet. The activity, “Weigh a change of state”, includes equipment, instructions, evidence to interpret and three questions with worked answers.
For AQA GCSE Combined Science: Trilogy, ages 14–16.
The download includes an editable particle-diagram sheet for solids, liquids, gases and changes of state.
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