what is the effect of temperature on a saturated solution ?

if the saturated solution is heated then the kinetic energy of the particles increases and there is some more space for the solute to be dissolved and so we can say that an unsaturated solution is obtained and if a saturated solution is cooled then the kinetic energy is decreased and thus the inter particle space is decreased and thus the particles become visible and crystallisation takes place

hope it helped :)

if a saturated solution is heated then the  solute settles in the bottom forming crystals

A saturated solution is a solution in which no more of a solute can be dissolved in a solvent.So to dissolve more of the solute we can heat the solution.Thus the increase in temperature(heat) causes more of the solute to dissolve in the molecules of the solvent.

First of all you need to know that there are two types of nature of salts solubility.

If heat energy is absorbed or needed in the process of dissolving salt then it is known as Endothermic in Nature. In this Nature, the solubility increases with rise temperature.

If heat energy is evolved or released in the process of dissolving of salts then it is known as Exothermic in Nature. In this nature, solubility decreases with rise in temperature.  

Examples of Salts that are  Endotheremic in nature. - NaCl ( Sodium chloride ) , KCl ( Pottasium Chloride ) , NaNO₂ ( Sodium Nitrate ) , NH₄Cl ( Ammonium Chloride ) etc. 

Examples of Salts that are Exotheremic in nature - Lithium Carbonate ( Li₂CO₃ ) , Na₂CO₃ ( Sodium Carbonate monohydrate ) , Cerium Sulfate [ Ce(SO₄)² ] etc.

Now to your question, If the salt is if endotheremic nature then the solubility will rise on increase in temperature , for ex if the solubility of NaCl is 54 at 36 degree celcius, then if there is rise in the temp. the solubility may become 56 or 58 or [ 54 + x ].

And if the salt is of exotheremic nature than it's solubility will decrease if there is any rise in temp, for ex if the solubility of Na₂CO₃ is 51 at temperature 36 degree celcius, then if there is any rise in the temperature the solubility may becom 50 or 48 or 43 or [ 51 - x ].