Particle model

This resource features three different versions of a worksheet on the particle model: scaffolded, partially scaffolded and unscaffolded. Use the worksheets to identify learners’ knowledge gaps and misconceptions after teaching or before revisiting these topics. Find out more about how to use this resource or download the worksheets below.

Curriculum topics

The Particle model worksheets cover the following topics:

• states of matter
• arrangement of particles in solids, liquids and gases
• names of state changes
• relative energy of particles in solids, liquids and gases
• changes in the kinetic energy when substances change state
• melting point and boiling point
• using melting point and boiling point data to deduce the state of a substance at a given temperature.

If learners successfully answer questions on these topics, they can attempt the extension question. This requires learners to use melting and boiling point data to complete a table identifying the state of a substance at different temperatures.

Independent learning and metacognition

The ‘What do I understand?’ page is common to all worksheets. Learners are encouraged to develop independent learning skills and can use their reflection as a guide for revision. The feedback will also help you to identify areas where a whole class needs attention.

Answers

The teacher guidance provides model answers for each worksheet, plus guidance on learners’ common misconceptions. Learners can use the model answers to self- or peer assess.