Is down a PREPOSITION IN THIS SENTENCE?

The dog looked down and saw its shadow.

No ... an adverb.

It tells WHERE the dog looked.

You can also tell that "down" isn't a preposition in this sentence because it isn't followed by a noun or pronoun.

Example:
down the hill

Yes, in this sentence "down" is a preposition. It is indicating the direction in which the dog looked.

Yes, the word "down" is a preposition in this sentence. It is used to show the direction in which the dog is looking. To determine if a word is a preposition, you can follow these steps:

1. Identify the word in question. In this case, the word is "down."
2. Look at its placement in the sentence. In this sentence, "down" is followed by the word "and" and is used to describe the direction in which the dog looked.
3. Consider the function of the word. Prepositions connect a noun or pronoun to another word in the sentence. In this case, "down" connects the action of looking with the location or direction of the dog's gaze.

By following these steps, you can identify "down" as a preposition in this sentence.