Sabrina: The Animated Series - Season 1 - Eps 39: When In Rome
A history teacher assigns Gem and Sabrina together as partners on a project on Rome. Gem becomes snotty though and hides the book on Rome in the spookie jar causing them to actually go to Rome. They are at first pitted against each other by Juilus Ceaser to fight but when it comes to going back home that's something they both agree on. They go back finish the report and Gem gets a brainwash, but in the end Sabrina discovered they made a great team.
About Sabrina: The Animated Series

Title: Sabrina: The Animated Series
First Air Date: 1999-09-06
Last Air Date: 2000-02-27
Status: Ended
Rating: 6.7/10 (from 78 votes)
Language: ZH
Seasons: 2
Total Episodes: 65
Network: ABC UPN
Genres: Animation, Sci-Fi & Fantasy, Comedy, Family
Production Companies: Riverdale Productions, DiC Entertainment, Hartbreak Films, Cookie Jar Entertainment, Savage Studios
Synopsis
An animated prequel to the live-action show "Sabrina, the Teenage Witch," the series features 12-year-old Sabrina Spellman, who's half mortal and half witch. Though few people know of her powers, and her mortal uncle frequently warns her not to use her magic to solve problems, Sabrina still borrows spells from the Spookie Jar and gets into trouble with her friend Harvey.
Cast

Melissa Joan Hart
Hilda Spellman / Zelda Spellman (voice)

Nick Bakay
Salem Saberhagen (voice)

Emily Hart
Sabrina Spellman (voice)

Jay Brazeau
Uncle Quigley (voice)

Jason Michas
Slugloafe (voice)

David Sobolov
Spookie Jar (voice)

Chantal Strand
Gem Stone (voice)

Cree Summer
Chloe Flan (voice)

Bill Switzer
Harvey Kinkle (voice)

Bob Bergen
Tim (voice)