Some prepositional phrases modify a noun. We call these phrases adjective phrases.
Look at this sentence: The girl in the pink dress dropped some money.
The phrase in the pink dress describes the girl. The phrase acts like an adjective because it tells more about the noun girl.
Here are more sentences where a prepositional phrase modifies a noun:
The dog with the bushy tail belongs to my brother.
The phrase with the bushy tail modifies the noun dog.
My mom is talking to the man in the blue car.
The phrase in the blue car tells more about the noun man.
That squirrel in the street might get hit by a car.
The phrase in the street modifies the noun squirrel.
Some prepositional phrases are used to modify a noun.
▶It’s your turn. Find the prepositional phrase in this sentence that modifies a noun. Those shoes by the back door need to go into the closet. Can you tell which of the prepositional phrases in this sentence tells more about a noun? Good for you!