Why are there so many types of words? In this BrainPOP movie, Tim and Moby tell you why, as they introduce you to four important parts of speech. You’ll learn how and why words are divided in categories, and why they’re so important for speaking and writing. Find out which type of word describes a person, place, thing, or idea; which describes an action; which describes or modifies nouns; and which describes or modifies verbs, adjectives, or adverbs. Finally, you’ll see how they’re all put together to form sentences. And, hey! We didn’t even get to interjections!