🔍 Key Concepts

• High vs. low pressure systems and how air moves in each • Relationship between rising/sinking air and clouds/precipitation • How temperature, density, and humidity are related in air masses

💭 Think About

• Think about whether high pressure is usually associated with clear skies or stormy, cloudy weather. • If air is sinking in a high pressure system, what happens to its moisture content and relative humidity? • How do changes in temperature affect the density of air and its ability to hold moisture?

✅ Before You Answer

• Ask yourself: In everyday weather reports, does a high usually mean fair/clear or wet/stormy? • Recall that sinking air tends to be more stable and usually leads to what kind of cloud/precipitation pattern? • Match the choice that best fits clear, stable weather conditions typical of a high pressure system.