Does anyone know any good examples of prepositional phrase sentences?

A vase of flowers fell on the floor.

In this sentence, we have two prepositional phrases. "Of flowers", "of" is a preposition and flowers is the object. "On the floor", "on" is a preposition and "floor" is the noun that it works with.

During my break, I went to the snack bar.

"During" is a preposition and then "break" is the object. "To the snack bar" is another prepositional phrase. "To" is the preposition and "snack bar" is the object it works with.

You will notice with these common prepositions that there is either a noun or a pronoun after it and that what makes a prepositional phrase and it's called the object of the preposition.

onto a large boat, and mark the water level that the boat sinks to. then, take the elephant out and put a bunch of marked weights onto the boat until it reaches the same water level. add up the masses of the weights to get the weight of the elephant.

specific audience will understand the main ideas. for example, if you were writing an instruction manual for rocket scientists, it would likely look very different from one you would write for young children. your language, tone, and writing style would change significantly.