Why do we need so much paper money? Why does the National Zoo have bison?  How did Thomas Edison record sound? How big is the Hope Diamond? What does the CPB do? And what is it ike seeing a Supreme Court oral argument in person? What about all those protests outside?

These are all questions the Civics 101 team sought to answer on their second and third days field-tripping in Washington D.C. And now they've been joined by Outside/In producer Felix Poon! Listen in as the team shares their experiences and some interesting facts they picked up during their reporting and down time.

And don't forget to stay tuned for all the episodes the team will produce after this trip to our nation's capital!

• CLICK HERE: Visit our website to see all of our episodes, donate to the podcast, sign up for our newsletter, get free educational materials, and more!
• To see Civics 101 in book form, check out A User's Guide to Democracy: How America Works by Hannah McCarthy and Nick Capodice, featuring illustrations by Tom Toro.
• Check out our other weekly NHPR podcast, Outside/In - we think you'll love it!