Solids, liquids and gases. In a solid like this brick ... and the number of spoonfuls of cornflour or custard powder. Try this activity five times but change one variable each time.

The focus is that matter, whether solid, liquid, or gas, is made up of particles; that dissolving and evaporation happen at the particle level; and that models can help explain these processes that we ...

The research utilized gas-liquid chromatography to determine the activity coefficients of various organic solutes, revealing that these DESs exhibited high selectivity for challenging separation ...