What is grace?
Grace is divine help and strength that we receive through the Atonement of Jesus Christ. Through grace, we are saved from sin and death. In addition, grace is an enabling power that strengthens us from day to day and helps us endure to the end. Effort is required on our part to receive the fulness of the Lord’s grace.
https://www.lds.org/youth/learn/yw/atonement/grace?lang=eng
Other handout text taken from:
https://www.lds.org/general-conference/2004/10/in-the-strength-of-the-lord?lang=eng