Return to Unit List Grade 5   Unit D: Weather and Climate     Chapter 8: Weather   Lesson 1: Atmosphere and Air Temperature   Summary   Quiz   Research Report: Our Atmosphere   Lesson 2: Water Vapor and Humidity   Summary   Quiz   Lesson 3: Clouds and Precipitation   National Geographic: Flood: Good News or Bad?   Summary   Quiz   Lesson 4: Air Pressure and Wind   National Geographic: Hurricane Hunters   Summary   Quiz   Chapter 8: Links Chapter 9: Weather Patterns and Climate   Lesson 5: Air Masses and Fronts   National Geographic: Weather Watch: Then and Now   Summary   Quiz   Lesson 6: Severe Storms   National Geographic: Storm Tracking   Summary   Quiz   Research Report: Severe Storms   Lesson 7: Climate   Summary   Quiz   Chapter 9: Links   People in Science/Careers