We recently used evaporation to separate a solution of salt (solute) that had dissolved in water (solvent). When the water evaporated the salt reappeared. However, it looked different because the salt reappeared as salt crystals (small squares with an X in the middle). It was quite interesting.
We are attempting to do a similar experiment with water from our beloved Pacific Ocean. We are trying to separate the salt from the water while also collecting the water, hopefully creating freshwater in the process.