Original sentence:
Mountains are like rocky waves that stand tall frozen in time.
Is it grammatically correct?
Yes — the sentence is understandable and mostly correct. To make it a little clearer, you can add a small comma or shorten it.
Two easy improvements:
- With a comma: Mountains are like rocky waves that stand tall, frozen in time.
- Shorter version: Mountains are like rocky waves frozen in time.
Why these work:
- The comma before "frozen in time" helps show that "frozen in time" is extra information describing how the mountains look.
- The shorter version keeps the same idea but is simpler and sounds nice.
Meaning for a 7-year-old: It says mountains look like big waves made of rock that don’t move — they seem stopped like a picture from long ago.
Nice job — it’s a lovely sentence and a good metaphor!