In the 'Animal Traits: Like Parent, Like Offspring?' word sort activity aligned with 1-LS3-1, students examine similarities and differences between young animals and their parents. By sorting traits like fur color and body size, students observe which characteristics are often passed from parent to offspring and which can vary. This activity encourages students to build an understanding of inheritance, heredity, and the concept that while young animals resemble their parents, they also show unique variations.