Aujourd'hui il fait froid, mais demain il fera beau.
<em>Today it's cold but tomorrow it will be nice.</em>
<em />
Il fait beau = it is nice
demain = tomorrow -> future
demain il fera beau = tomorrow it will be nice.
In French, the verb FAIRE is used to speak about the weather at the 3rd person masculine sing. ==> il fait (présent), il a fait (passé composé), il fera (futur)
I think it would be the formation of bubbles because, ice melting, something dissolved in water, and sugar crystals forming, are all physical changes. They are still the same components just different physical appearances.
If it's a double bar line at the end of a staff, it is just there to separate two sections of the music. If it's a single bar line, it's there to separate beats to make a measure.