Dave welcomes Kid Scientists, actress Elizabeth Banks, and musical guests Edward Sharpe & the Magnetic Zeros. Kid Scientist Cairo Lawrence demonstrates her "Newtonian Headgear". Kid Scientist Jack Brandt demonstrates the "Can Crush". Elizabeth Banks recalls a family road trip where her sister got left behind at a McDonald's.
| Name | Type | Role | |
|---|---|---|---|
| Elizabeth Banks | Guest Star | ||
| Edward Sharpe & The Magnetic Zeros | Guest Star |