In partnership with the Society of Biology, Royal Society of Chemistry, and Institute of Physics


This lesson is designed to exemplify a model-based inquiry approach to practical work in which students make, use and evaluate models for osmosis.

Osmosis is an important process which allows plants to take up water. A model can be used to help explain how this process works, and to make predictions. In this lesson students make and use a 3-D model for osmosis and evaluate the 3-D model compared to a more familiar 2-D model for osmosis.

Download resources

Resources for this lesson comprise: student sheet; teacher guidance; practical guidance; a presentation; and two short animations. You should also read our standard health & safety guidance.

Quick start guide

For support in using the model-based enquiry approach and to find out more about the research behind it, refer to our quick start guide