This nonfiction reading unit (level O) focuses on the climates of Seattle, Washington, and San Diego, California. Students learn about the differences and similarities of two coastal cities' climates: Seattle's and San Diego's. The unit contains teacher support pages, a reading selection with supporting illustrations, and activities to guide students in close reading of the text. Students also gain practice applying content and academic vocabulary. The unit concludes with a lesson exploring text structure (Compare and Contrast) and a text-based writing activity.