1. Teaching Point: “To connect earthquake strength and plate boundaries.” Do now Discussion: Which plate boundary do you think has the most powerful earthquakes? Why?

2. Earthquakes and active volcanoes locations mark the boundaries between tectonic plates; also called faults  Earthquakes are evidence that Earth is in constant motion Let’s Review Plate Tectonics TP: “To connect earthquake strength and plate boundaries.”

3. Richter Scale = measuring absolute magnitude (strength)  An objective scale of an earthquake’s power Earthquake Measurement Scales TP: “To connect earthquake strength and plate boundaries.”

4. Magnitude and Energy Released TP: “To connect earthquake strength and plate boundaries.”

5. Mercalli Scale = measuring magnitude by damage  A subjective scale of an earthquake’s power that overestimates strength in urban areas and underestimates earthquake strength in rural areas Measuring Earthquakes Modified Mercalli Scale Animation TP: “To connect earthquake strength and plate boundaries.”

6. shallow depth / low magnitude Divergent Boundary Earthquakes TP: “To connect earthquake strength and plate boundaries.”

7. shallow – deep depth / low – high magnitude Convergent Boundary Earthquakes TP: “To connect earthquake strength and plate boundaries.”

8. shallow – moderate depth / low – moderate magnitude Transform Boundary Earthquakes TP: “To connect earthquake strength and plate boundaries.”

9. Take out your own Plicker Card. You should all have a number assigned to you. When you see the answer you think is correct, turn your card so the multiple choice answer letter of your choice is facing up Wait until the entire class is done, and do not change your answer based on others! Mid-Lesson Assessments TP: “To connect earthquake strength and plate boundaries.”

10. Mid-Lesson Assessments 1.The main difference between the Richter Scale and the Modified Mercalli Scale for measuring earthquakes magnitude is: a. only the modified Mercalli scale measures both absolute magnitude and earthquake magnitude by its damage b. only the Richter scale measures absolute magnitude c. only the Richter scale measures earthquake magnitude by its damage d. none of the above TP: “To connect earthquake strength and plate boundaries.”

11. 2.Which type of plate boundary has the most powerful and deepest focused earthquakes? a. convergent b. divergent c. transform d. both convergent and divergent Mid-Lesson Assessments TP: “To connect earthquake strength and plate boundaries.”

12. Intellectual Engagement What would be the pros and cons of being able to harness the kinetic energy from an earthquake? TP: “To connect earthquake strength and plate boundaries.”

13. Instructions: Using what we just learned about earthquake scales and plate boundary earthquake intensity… Task A- create a graphic organizer of your choice using the information about the two earthquake scales Task B- create a tree diagram organizing the earthquake intensity/depth for each of the plate boundaries Task C- complete Task A and B. Flexible Group- take out your portfolios and meet with me in the back of the room. Class Activity- Earthquake Scale TP: “To connect earthquake strength and plate boundaries.”

14. Lesson Summary In your tables of four, go back into your notes and consider what we have just learned today, and then… 1. Identify three (3) important concepts we learned today, and then… 2. Place those three in order from the most important to the least important concept. TP: “To connect earthquake strength and plate boundaries.”