Lesson 4: Earthquakes and Moving Plates
Think about the visible changes that earthquakes make on the surface of the Earth. What did you learn from your experiment? What do you think are the strongest building shapes for withstanding an earthquake, the best soil/bedrock to minimize earthquake risk, or the difference made by the distance to the epicenter of the earthquake?
Watch for depictions of earthquakes in the news, movies, television, and books. Have you been in an earthquake? Do you think the depiction is probably realistic or not?
Questions to Discuss
- Explain why a magnitude 7 earthquake is so much worse than a magnitude 6 earthquake. (Your child should understand that a magnitude 7 is 32 times stronger than a magnitude 6. There would be a significant difference in strength and resulting damage.)
- What did you learn from today's activities?
- How can earthquakes that occur in the ocean be dangerous? (Some can result in tsunamis that travel far across the ocean damaging coastal areas and putting people who live in those areas in danger.)
Things to Review
Review the definition of epicenter and the differences between faults and plate boundaries.