Water Cycle Unit Activities & Assessment – 4th Grade Science (TEKS Aligned) Make teaching the water cycle engaging and standards-aligned with this 4th grade science resource, perfect for Texas classrooms! This product includes a creative writing activity, scoring rubric, and end-of-unit assessment aligned to TEKS 4.10B. What’s Included: Water Cycle Writing Activity – “A Drop’s Journey” Students write a short narrative from the perspective of a water droplet as it moves through: Evaporation Co