The Questions I Have Is:

 

 

Evaporation

How many time is it needed to be able to evaporate the water from the salt ?

 

Chromatography

How will the colors rise after having contact with the water ?

 

Filtration

How will the coper solfate react after getting filtrated ?

 

Sedimentation

How will all the soil in the water go to the bottom of the container leaving the water clean ?