Unda vita. There is no 'of' in Latin. Unda means water, vita means life. It might be more accurate to say Vita unda although since the lack of translation for 'of' can muck up the meaning a bit. Although aqua also means water so Vita aqua also would work. I like Vita unda better because the 'a' in vita and first 'a' in aqua don't run together.
That is the correct spelling of most uses of the word "water" (H2O).
Salt water is correct.
That is the correct spelling of "amphibian" (animal dwelling on land and in water).
storm water
Yes, "peninsula" is the correct spelling of the term in social studies. A peninsula is a landmass that is surrounded by water on three sides.
The correct spelling for the form of the verb to ski is skiing (snow or water sport).
That is the correct spelling of "hyacinth" (the plant or its flower, or the unrelated water hyacinth).
You have spelled it correctly.
The correct spelling is thirsty (needing water).
The correct spelling of the past tense of to ski is spelled "skied".
The correct spelling is "geyser" (a spout or eruption of water).
The correct spelling is "pour"