When someone calls on Sparks' Crew to help with a backyard "monster, the team discovers that it's actually a mother opossum and her babies.How can our heroes lure them out of the yard? Curriculum: Animal parents and offspring engage in behaviors that protect their young and help them survive. / In Citytown, the Super-Duper Store is a sudsy mess; an automated floor cleaning machine is on the fritz, causing a soapy situation inside the store. Sparks' Crew is in a slippery situation. Curriculum: The strength of a push on an object affects the speed of the object. When colliding with an unmovable object, a moving object's direction can change.