Sorting Materials Into Groups Worksheet Q1: Identify from the following items which are soluble or insoluble in water? ⅰ Salt ⅱ Kerosene Oil ⅲ Sand ⅳ Sugar ⅴ Chalk Powder ⅵ Lime Juice ⅶ Cooking Oil ⅷ Vinegar Q2: Materials are classified on the basis of appearance, hardness, solubility, density and transparency. Write down properties for the following items: ⅰ Metals ⅱ Plastic ⅲ