Preschool STEAM Lesson: Air Pressure, Weather & Barometer Experiments (Ages 4–6) Make invisible science visible, hands-on, and magical for your little learners! In this engaging STEAM lesson, children explore air pressure, weather changes, and material properties through simple, exciting experiments they will never forget. Perfect for preschool and kindergarten classrooms, homeschool, or outdoor learning. ✨ What’s Included Complete 75-minute lesson plan (step-by-step, easy to follow) Ha