Lesson Plan

• Describe the key moisture processes (evaporation, transpiration, advection, convection, condensation, sublimation) and their role in the atmospheric water balance.
• Explain the four main lifting mechanisms that trigger precipitation and how they relate to weather systems.
• Identify and classify the main types of precipitation based on formation mechanisms and temperature profiles.
• Apply the Clausius‑Clapeyron relationship to estimate saturation vapour pressure for a given temperature.
• Analyse a weather scenario to predict the likely precipitation type.

• Projector or interactive whiteboard
• PowerPoint/Google Slides with diagrams of moisture processes and precipitation types
• Handout summarising moisture processes, lifting mechanisms and precipitation table
• Worksheet with scenario‑based questions
• Laptop or tablet for students to access online climate data (optional)
• Markers and chart paper for group diagram activity

Imagine stepping outside and seeing rain, sleet, or hail within minutes – what decides which falls? Review the basic ideas of evaporation, condensation and cloud formation that students already know. By the end of the lesson they will be able to identify the processes that create moisture, explain how air is lifted, and correctly name the type of precipitation that results.

1. Do‑now (5'): Quick quiz on evaporation & condensation concepts.
2. Mini‑lecture (15'): Overview of moisture processes with annotated diagram.
3. Interactive demonstration (10'): Model of frontal, orographic, convective and convergence lifting using a simple wind‑and‑terrain setup.
4. Group activity (15'): Analyse provided weather maps to identify the dominant lifting mechanism.
5. Worksheet (15'): Match precipitation types to formation mechanisms, calculate saturation vapour pressure using the given formula.
6. Check for understanding (5'): Exit ticket – one sentence explaining how the temperature profile determines the precipitation type.

We recap the moisture cycle, the four lifting mechanisms, and the link between temperature profiles and precipitation types. Students hand in their exit tickets and receive a brief verbal summary. For homework, they will complete a short online quiz that asks them to predict precipitation type from real‑time weather charts.