The StoryBots are standing by to field more questions from curious kids -- from "Why do people look different?" to "Where does chocolate come from?"

How Do You Make Music? 26m After tumbling into a tuba, the StoryBots enter a magical, musical wonderland. John Legend guest-stars as the King of Music.

Where Do Planets Come From? 28m The 'Bots blast off into outer space to learn how planets are made -- and what they're made of. Zoe Saldana guest-stars as an astronomy professor.

Why Do People Look Different? 28m No two people are exactly alike, thanks to a little thing called DNA. Reggie Watts guest-stars as a nurse who explains it all.

Why Do We Have to Recycle? 29m A trip to a landfill teeming with trash teaches the StoryBots the importance of recycling. Tony Hale guest-stars as the owner of a sorting facility.

How Do Cell Phones Work? 25m To see how cell phones work, the StoryBots hop inside one. Jennifer Garner guest-stars as a cell tower switching-station operator.

What Happens When You Flush the Toilet? 28m We use the toilet every day, but how does it work -- and where does our waste go? Jason Sudeikis guest-stars as a plumber in the know.

Where Does Chocolate Come From? 28m The StoryBots jump into a vending machine to find out where candy bars come from. Alyssa Milano guest-stars as a chocolatier.