There are many answers to this question. Here are some examples:
Liquid water is non-magnetic and non-conductive. It is used for drinking, washing dishes and watering plants.
Water in the gas phase is also non-magnetic and non-conductive. It has a much lower density than liquid water. It is used for powering steam engines and some power plants.
Water in the solid phase (ice) is also non-magnetic and non-conductive. Surprisingly, it has a slightly lower density than liquid water. This is a unique property of ice and it is the reason that ice floats on water. If it didn't, all the fish in a frozen lake would get crushed! Ice is used to build igloos, keep food cold and to reduce swelling if you have an injury.