Bring science to life this Valentine’s Day with this hands-on Heartbeat & Pulse Lab designed especially for Grades 2–3! This engaging, low-prep science resource helps students explore how their heart works, what a heartbeat is, and how exercise affects heart rate—all through fun reading, movement, data collection, and reflection. Perfect for Valentine’s Day science, human body units, or health lessons, students will act like real scientists as they measure, compare, and analyze their o