Fowards Issy Jones and Angharad Kent-McCormack move to the bench with Becky Newton, Lowri Harries, Vicky Owens and Amy Thompson all making the starting line-up.
Levi Hallett moves up from the bench to start at centre with Rhianydd Morgan also starting on the right wing.
Canada Women v Wales Women U20 - Monday 14th July, KO 7:10pm (BST)
Wales Women U20: Mared Evans; Rhianydd Morgan, Heledd Stephens (Vice Capt), Levi Hallett, Paris Nicholas; Elinor Snowsill, Hannah Lerwill; Beccy Newton, Amy Lawrence, Lowri Harries, Sian Williams, Megan Snape, Vicky Owens, Amy Thompson, Carys John (Capt)
Replacements: Issy Jones, Carys Thomas, Angharad Kent-McCormack, Lisa Newton, Yasmin Leung, Bethan Preece, Rachel Green