Duck asks Frog to read his favorite book on Ant's radio station because he can't read it himself. Build a Word: "BOOK" Frog discovers that you can make a word more than one by adding the letter S to the end of it, he becomes a mad scientist of sorts! Build a Word: "ROBOTS"

Originally released by PBS, 2008. Streaming video file encoded with permission for digital streaming by Infobase on March 23, 2022.