Izzie straps on her waders with Annie and her friends to make a local wetland more attractive to turtles.
Izzie joins Anna and her friends to engineer a giant pig puppet for a May Day parade, complete with blinking eyes and a twirling tail.
Izzie, Serena and Ceci bond with bottlenosed dolphins, exploring their behavior at the Dolphins Plus Research Center.
Izzie unearths the past with Jazzy and Gates, uncovering thousand-year-old Native American artifacts at a Utah dig site.
Izzie joins Zoe and her friends as they "pony up" some science to select the best horse for a riding competition.
Izzie's off the grid with Hannah and her friends, who design and build their own working miniature wind farm.
With Project Runway fashion designer Diana Eng, Izzie wires up an electrifying gown with Hallie and her friends.
Izzie cooks up a taste test with Claire and her friends, who make comfort foods more nutritious (without sacrificing the delicious).
Izzie takes the plunge with Elle and Meg, scuba diving to protect the biodiversity of their favorite Catalina reefs.
Izzie joins Abby and friends to give a rescue robot a personality makeover so it can do a better job when disaster strikes.
Izzie joins forces with Mackenzie and friends, putting a lid on school trash by inventing a new use for recycled yogurt cups.
Izzie reaches for the stars with Avianna and Miranda, as they help cut light pollution in their neighborhood.