For number 2, all you need is to describe the definitions of solids, liquids and gasses.Solids matter are ones that you can actually touch that can be either soft or hard, and they can have different textures such as smooth or rough.Liquids can't be held in the hand, and require a container to be stored, but they can still be touched.Gasses float around everywhere unlike the others and can't be touched directly.For number 3Solids: Pencils, tables, phones, booksLiquids: Water, Juice, sauce, oilGas: Air, smoke, water vapor