An informative speech is one that intends to educate the audience on a particular topic . There are many different types of informative speeches, including speeches that describe the conditions of a subject and speeches that instruct the audience on how to perform an action.
Source: Boundless. “Defining an Informative Speech.” Boundless Communications. Boundless, 27 Jun. 2014. Retrieved 25 Jan. 2015 from https://www.boundless.com/communications/textbooks/boundless-communications-textbook/informative-speaking-13/introduction-to-informative-speaking-69/defining-an-informative-speech-270-76/