Answer:Generally, substances that are insoluble in water include:Fats and Oils: These are nonpolar molecules and do not interact favorably with polar water molecules.Many Organic Compounds: Many hydrocarbons (compounds made of only carbon and hydrogen) are insoluble.Plastics: Most plastics are polymers with nonpolar characteristics.Metals: Most metals in their elemental form do not dissolve in water.Sand (Silicon Dioxide - SiO₂): It forms a crystal lattice that water molecules cannot easily break down and interact with.Wood: Primarily composed of cellulose and lignin, which are complex polymers that don't readily dissolve in water.To give you a specific answer, please provide the list of substances you are interested in.