{{Infobox episode |season= 5 |production= 453b |broadcast= 72 |story= Aliki Theofilopoulos- Grafft |ws= Robert F. Hughes |directed= Dan Povenmire |next aired= "Thaddeus and Thor"


Baljeet is discouraged about his prospects at a science fair. Candace competes for a job to be with Jeremy. Dr. Doofenshmirtz seeks to overcome a past rival: a bicarbonate volcano.


Running Gags

The "Too Young" Line


Ferb's Line(s)

  • "We did, but that's another story"
  • "Check!"

Whatcha' Doin?

Said by Isabella.

Perry's Entrance to his Lair

enters in the file cabinet in the living room.

Evil jingle

Doofenshmirtz Evil Science Hideout!


  • Produced during the Season 1 time period, but broadcast as the 46th episode for both Disney XD and Disney Channel US. The Disney XD premiere was on February 17, 2009 and the Disney Channel US premiere was on March 20, 2009. It still uses the Season 1 title sequence.
  • First episode that focuses on the science fair.


  • The Flynn-Fletcher's backyard (in the beginning only)
  • Science Fair

Characters present

  • Phineas
  • Candace
  • Ferb
  • Dr. Doofenshmirtz
  • Major Monogram
  • Perry
  • Jeremy
  • Baljeet
  • Wendy
  • Isabella
  • Mr. Mcgilicuddy
  • The Unnamed Slushy Dawg Manager
  • Judges at the Science Fair
  • Girl with a baking soda volcano

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