Looking for engaging, no-prep Valentine’s Day STEM activities using candy hearts (conversation hearts)? This hands-on Candy Heart STEM pack is perfect for preschool, kindergarten, and first grade classrooms! Designed for Valentine’s Day centers, small groups, and whole-group learning, these Valentine STEM activities help students explore engineering, balance, problem-solving, early math, and scientific thinking—all with a fun Valentine’s Day theme. Using classic conversation hearts or printable