Ice
That is called sublimation.
solid water is called ice.
The liquid phase of water is called water.
WATER! If you put water in a cup and leave it in the freezer it will turn to an ice cube then if you leave it somewhere warm and cosy it will turn back to a liquid again. Try it for yourself even.
Soild water
Water. You cauld also call it H2O if that's what you mean, but i'd say water.
A change of phase; from gas phase (water vapors) to liquid phase; the phenomenon is called condensation.
ice
It is from the liquid phase to the solid phase. It is called freezing.
This phase change is called evaporation.
The phase change of water (liquid) to ice (solid) is called solidification.
Liquid.