Essential Chemistry - Dissolving Salt in Water
Help students understand dissolving by looking at it from a molecular perspective.
With this interactive from PASCO's Essential Chemistry, they can look at the charges of the solute (salt) and solvent (water) particles. Then they can infer the strength of the attractive forces between the particles as the salt and water mix. (NGSS HS-PS1-3).
Use this interactive as a starting point so students can truly understand how dissolving occurs, and why somethings are soluble while others are not.