Martha Go, Go, Goes Green!
Martha and Helen decide to enter Wagstaff City's Go Green Go-Cart race, so they do some research and visit the junkyard to find what they need to build a solar-powered cart.
FIC
year: 2013
copies: 2
call number/section: FIC
lexile: 480
subjects: martha (fictional character : meddaugh) [X], dogs, carriages and carts [X], renewable energy resources, automobile racing