These downloadable videos and animations are part of the multimedia package Stuff and Substance, developed by the Gatsby Science Enhancement Programme (SEP). They can be used to introduce the idea of solubility.
Solubility is the amount of a substance that will dissolve in a certain amount of solvent. Students can confuse solubility with the rate of dissolving. The animation shows only so much of a substance dissolving no matter how long the stirring. Videos featuring benzoic acid and alum show a change in solubility with temperature and how this can be used to grow crystals. The two other videos use propanone as the solvent to show how solubility also depends on the solvent.
These video and animation files form part of the resources in the section Solubility in the Stuff and Substance multimedia package, which provides a series of interactive pages that can be used by teachers or students in the classroom.
HEALTH and SAFETY
Any use of a resource that includes a practical activity must include a risk assessment. Please note that collections may contain ARCHIVE resources, which were developed at a much earlier date. Since that time there have been significant changes in the rules and guidance affecting laboratory practical work. Further information is provided in our Health and Safety guidance.