The soccer ball is a noun because it is a thing.

They is a pronoun because it takes place of names.

Brown is an adjective because it is a color.

Running is a verb because it shows action.

Happily is a adverb because it ends with ly.

Around is preposition because it shows the relationship of the sun and the planet.

And is a conjunction because it connects two words.

Ew is a interjection because it is an emotion.