![]() Consider allowing the students to investigate the simulations for themselves, either in class or for homework this worksheet could be suitable. Students can see state changes, and relate this to movement and arrangement of the particles. Place a few drops of a perfume on a watch glass and ask the students to raise their hands when they can smell itįreely available online simulations, such as the pHET States of matter, allow you to demonstrate the effects of heating and cooling substances. By increasing the vibration speed, you can model solid, liquid and gas. A vibrating base ‘energises’ the particles. These use ball bearings to model the particles. Check with your physics department to see if they have a kinetic theory model (eg SciChem XPG050011 Timstar SI68190). Hands-on demonstrations, simulations and practical work provide lots of opportunities for your students to understand the dynamic nature of particles. Look at where it is scheduled in your school’s schemes of work to see whether you will be teaching it for the first time, or consolidating the knowledge. There is a strong overlap between this area in chemistry and physics. ![]() ![]()
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