Students will be able to develop and explain a particle-level model to describe their observations of water dissolving salt, the water evaporating, and the salt crystals re-forming. Dissolving a solid ...

The liquid becomes a gas ... Brownian provides evidence for the kinetic particle model of matter. The microscopic particles that are observed in Brownian motion can be moved by collisions with ...

Students will be able to develop and explain a particle-level model to describe evaporation and condensation ... Evaporation happens when water molecules at the surface of a liquid move fast enough to ...

Particle Counters measure particulate contamination on the surface, and in liquid or air using conventional microscope lenses or optical technologies such as white light, glancing light ...

The Standard Model of Particle Physics is probably one of the ... It is here that the sometimes-liquid metal comes in. If an ...