Italian Phrase
Quando è la mostra di scienze?
Meaning
This question asks for the date or time when the science exhibition will take place. It’s a straightforward way to inquire about an event’s schedule.
When to use
Use this phrase when you want to know the timing of a school, community, or museum science fair—whether you’re a student, a parent, or a visitor planning to attend.
✦Grammar Breakdown
Quandoèlamostradiscienze?
Quando (interrogative adverb)
Used to ask about time; it does not change form for gender or number.
è (verb essere)
Third‑person singular present of 'to be', used here as a copula linking the subject and its description.
la mostra (noun phrase)
A feminine singular noun meaning 'exhibition' or 'fair'.
di scienze (prepositional phrase)
Introduces the theme of the exhibition; 'scienze' is a plural noun meaning 'science'.
🗨In Conversation
Quando è la mostra di scienze?
When is the science exhibition?
È domani alle dieci del mattino.
It’s tomorrow at ten in the morning.
✕Common Mistakes
Che è la mostra di scienze?
"Che" means "what"; it cannot replace "quando" when asking about time.
Quando sono la mostra di scienze?
Use "è" (singular) because "mostra" is singular; "sono" is plural.
Quando è la mostra di scienza?
"Scienza" is singular; the exhibition usually covers multiple scientific topics, so the plural "scienze" is standard.
↔Alternatives
Quando si terrà la mostra di scienze?
When will the science exhibition be held?
Qual è la data della mostra di scienze?
What is the date of the science exhibition?
A che ora inizia la mostra di scienze?
At what time does the science exhibition start?
Cultural Tip
In Italian schools, "mostra di scienze" often refers to a project fair held toward the end of the academic year, usually in spring. When asking, keep the tone polite but informal if you’re speaking with classmates or teachers you know well; you can add "per favore" for extra courtesy.

