Sara is excited to celebrate the (full) moon viewing with her hero friends, but they notice that half the moon seems to be 'gone!' / On a mission to find the other half of the moon and save the festival, Sparks' Crew flies to the moon to investigate. Curriculum: Objects can only be seen if light is available to illuminate them, or if they give off their own light. Patterns of the motion of the sun and moon in the sky can be observed, described, and predicted.