The document discusses the water cycle and cloud formation. It explains that clouds form through three steps: 1) an air mass rises due to mechanisms like convection currents or colliding with another air mass, 2) the air mass cools and expands as it rises, and 3) condensation occurs when the air reaches its lifting condensation level. It also classifies clouds by height and shape, describes different types of precipitation like rain, snow, sleet and hail, and outlines the basic water cycle of evaporation, condensation and precipitation that moves water between the atmosphere, land and oceans.

1. 11.3 Moisture in the atmosphere Pages 285 - 291

2. Goal 1 Explain how clouds are formed

13. Goal 2 Identify various types of clouds and give their characteristics

26. Goal 3 Describe the water cycle

31. PD - gov

32. Goal 4 Describe types of precipitation