Why Do We See Rainbows

This engaging 250-word reading passage introduces fourth-grade students to the science behind rainbow formation, aligned with NGSS standard PS4.B. Students discover how sunlight interacts with water droplets in the air through refraction and reflection. The passage explains that each droplet acts like a tiny prism, bending and separating white light into its component colors: red, orange, yellow, green, blue, indigo, and violet. Written at an appropriate reading level for Grade 4, the text uses clear, accessible language to explain complex concepts like refraction and the visible spectrum. The passage includes bolded key vocabulary terms with immediate definitions to support comprehension. Students learn why rainbows appear when the sun is behind them and rain is in front of them. This audio-integrated resource includes a simplified differentiated version for struggling readers, Spanish translations of both versions, a comprehensive glossary, multiple-choice questions testing recall and application, writing activities, and graphic organizers. The materials support hands-on investigations and classroom discussions about light and its properties, building foundational understanding of physical science concepts essential for elementary learners.