Latin does, in fact, not have a future subjunctive. There are ways to construct a replacement (using the so-called periphrastic conjugation), as in the famous quid sit futurum cras, fuge quaerere (do not ask what will happen tomorrow, Horace Carm. 1, 9); however, this is unnecessary in your case, where the future sense is already expressed by a present subjunctive.
In ut California noscent, you are using the future tense, necessarily indicative. Ut does indeed mean “so that,” but in this sense it requires a subjunctive, so that is not grammatical. (Even more problematic, noscent is plural.)
In sic California sciat, you are using the present subjunctive correctly, but sic means “in this way,” so the meaning is not really what you want to express. (In English, “so” is an amazingly versatile word, so what would be a good Latin equivalent in one case might be completely wrong in another. Sic is often used for “so,” but not here.)
My suggestion, therefore, would be ut California sciat. If you prefer the verb noscere, things are a little more complicated, as this verb tends to use perfect forms for present meanings; however, it means “know” more in the sense of “be acquainted with,” whereas scire is obviously associated with “science,” so I believe the latter is a better fit for your purpose.
