Hypothesising, observing, identifying variables, recording information, comparing, interpreting informationĬrossword puzzle, reading and writing, sorting and classifying Investigation: Comparing the diffusion of particles in a gas and in a liquid 10-12.Ģ.1: What is the particle model of matter? (1 hour)Īccessing and recalling information, revisingĪctivity: Comparing solids, liquids and gasesĪccessing and recalling information, comparing The particle model of matter will be a strong theme throughout the rest of the Physical Sciences curriculum, especially if learners continue through to Gr. Important links are made to new concepts such as diffusion, changes of state, density, expansion, contraction and gas pressure. In this chapter these ideas are further expanded, using the particle model of matter. The behaviour of particles in each of the three different states of matter was used to explain the macroscopic properties of each state. This was the first introduction to the concept of matter particles. These were grouped together and the generic term 'particle' was used to refer to these fundamental building blocks of matter. 6, no distinction was made between atoms and molecules. This chapter builds on the introduction to the arrangement of particles in materials that was covered in the chapter 'Solids, Liquids and Gases' of the Gr.
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