Bring science to life with Forces of Nature & The Changing Earth, a comprehensive 4th–5th grade science unit that blends STEM inquiry, hands-on labs, and real-world engineering. Students explore how Earth changes through weather patterns, natural disasters, energy transfer, and simple machines, while learning how living things adapt and thrive in diverse ecosystems. What’s Included: ✅ Teacher & Student editions (editable & printable) ✅ Readings (200-word nonfiction passages for every topic