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.

How to use this resource

The worksheets can be used in a variety of ways:

• to assess learners’ knowledge at the beginning or end of a period of teaching – the level of the worksheet used can be matched to the support needs of your learners
• to assess knowledge during a period of teaching, after learners have completed relevant sections
• as a revision tool prior to examination
• as a refresher exercise for learners or teachers looking to check their own subject knowledge.

There is also scope for the level of the worksheets used to be increased as learners progress through their curriculum.

Scaffolding

Three levels of support, provide options depending on the diverse support needs of learners. An editable version of each worksheet provides further opportunities to adapt the resources to meet individual learning needs. There is also scope to increase the level of the worksheets used, as learners progress through their curriculum. 

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.