Viscosity | Classic chemistry experiments | 11–14 years

Have learners explore and compare the viscosity of different liquids with this simple practical. Learners compare the viscosity of thick and thin liquids by measuring the time it takes for a bubble to rise through each liquid and recording their results in a table. They then apply their understanding of particles to explain their observations. Use this simple practical and the accompanying resources to develop learners’ observational and experimental design skills, as well as their understanding of viscosity. Resources include scaffolded and unscaffolded student sheets, teacher notes with answers and a presentation with intergrated instructions.