Learn Hardcore Spanish (Latin America): La escuela está muy tranquila ahora.

In Spanish, estar is commonly used to describe temporary states or conditions, such as how something is feeling or looking at a certain moment. Since the sentence focuses on the current state of calmness at the school, está is more appropriate. If we used es, it would imply a permanent or inherent characteristic, which doesn't fit here.

Why is tranquila in the feminine form?

The word escuela is a feminine noun, so any adjective describing it must also be feminine. That’s why we say tranquila instead of tranquilo—the adjective must agree in gender with the noun it's describing.

What’s the difference between muy and mucho?

Muy means "very" and is used to modify adjectives and adverbs, for example: muy tranquila (very calm). Mucho means "a lot" or "much" and is often used to modify nouns or verbs, like mucho trabajo (a lot of work) or estudia mucho (he/she studies a lot).

Could I move ahora (now) to a different place in the sentence?

Yes. You can say Ahora, la escuela está muy tranquila or La escuela ahora está muy tranquila. Spanish allows some flexibility with adverbs like ahora, though the original placement sounds very natural and clear.