Materials

• Photographs or slides of the impact of earthquakes, floods, volcanic eruptions, and erosion
• Outline map of the world with only countries and continents listed

Instructional Activities

1. Review the information from the previous session.
   
   
2. Explain to students that in addition to the impact weather phenomena have on the physical environment, the environment is also impacted by other processes: earthquakes, floods, volcanic eruptions, and erosion. Describe each of these processes, explaining how they occur and what their specific impact may be. If possible, display photographs or slides that reflect these impacts.
   
   
3. Assign a teacher-selected reading, worksheet, or other reinforcement activity, using available teacher resources.