Q4- SCIENCE 7- WEEK 2_LC 5 all about earthquakes.pptx

science lesson

1. TO TEACHER nathan CHANNEL

2. SCIENCE 7 fourth QUARTER LC 5 - WEEK 2 Matatag curriculum WITH FREE POWERPOINT PRESENTATION Earthquake Modeling

3. Earthquake Modeling CONTENT The learners learn that the damage or effects on communities depend on the magnitude of and distance from an earthquake. LEARNING STANDARD The learners will make models of fault scenarios to illustrate: the epicenter of an earthquake from its focus, the intensity of an earthquake from its magnitude, and how underwater earthquakes may or may not generate tsunamis; LEARNING COMPETENCY

4. By the end of the lesson, the 80 percent of the learners will be able to: Describe how earthquake magnitude relates to the intensity of ground shaking. Create a model to represent the anatomy of an earthquake. Appreciate the importance of understanding fault line behavior for earthquake preparedness and disaster response by answering the reflection of learning. OBJECTIVES

5. I. Activating Prior Knowledge Short Review The learners will label the anatomy of the earthquake by choosing the answer from the pool of words below the picture. I. Activating Prior Knowledge Epicenter Fault Focus Magnitude Seismic wave

6. I. Activating Prior Knowledge Short Review The learners will label the anatomy of the earthquake by choosing the answer from the pool of words below the picture. I. Activating Prior Knowledge Epicenter Fault Focus Magnitude Seismic wave Focus Epicenter Fault Seismic wave

7. B. Establishing Purpose of the Lesson 1. LESSON PURPOSE 1. Describe how earthquake magnitude relates to the intensity of ground shaking. 2. Create a model to represent the anatomy of an earthquake. 3. Appreciate the importance of understanding fault line behavior for earthquake preparedness and disaster response by answering the reflection of learning.

8. B. Establishing Purpose of the Lesson 2. Unlocking Content Vocabulary: Match Type Activity EPICENTER MAGNITUDE INTENSITY The point on the Earth's surface that is directly above the focus. Earthquake magnitude is a measure of the“size ,” or amplitude, of the seismic waves generated by an earthquake source and recorded by seismographs It is a measure of the strength of shaking experienced in an earthquake. FOCUS The point within Earth where rock under stress breaks, resulting in an earthquake.

9. C. Developing and Deepening Understanding Understanding the Epicenter and Focus Focus The focus is the point within the Earth's crust where the earthquake originates. It's where the rupture starts and energy is released. Epicenter The epicenter is the point on the Earth's surface directly above the focus. It's the location where the earthquake's effects are felt most intensely.

10. C. Developing and Deepening Understanding Understanding the Seismic wave and Fault Fault The fractures or cracks in the Earth's crust where tectonic plates meet and move relative to one another. These fault lines are the primary source of earthquakes, as the sudden movement and release of built-up stress along the fault causes the ground to shake. Seismic waves When an earthquake occurs, the sudden movement and release of energy along a fault line generates seismic waves - vibrations that travel through the Earth's interior and crust.

11. C. Developing and Deepening Understanding Earthquake Intensity and Magnitude 1 Magnitude The total energy released during an earthquake, measured using scales like the Richter or Moment Magnitude scales. 2 Intensity The measure of ground shaking experienced at a particular location, measured on scales like the Modified Mercalli Intensity scale.

12. C. Developing and Deepening Understanding Tsunamis from Underwater Earthquakes Thrust Fault A type of fault where rocks on one side of the fault push up and over the rocks on the other side. Seafloor Displacement The movement of the seafloor during an earthquake can create large waves called tsunamis. Tsunami Wave The wave travels across the ocean and can cause significant damage when it reaches the shore.

13. C. Developing and Deepening Understanding Understanding Fault Lines Convergent Plates collide, creating mountains, volcanoes, and earthquakes. Divergent Plates move apart, creating new crust and rift valleys. Transform Plates slide past each other, causing earthquakes along fault lines .

14. C. Developing and Deepening Understanding Earthquake Prediction Seismic Monitoring Scientists use networks of seismometers to detect and measure earthquake waves. GPS Measurements GPS stations monitor ground movement, providing insights into fault behavior. Data Analysis Analyzing data helps identify patterns and predict potential earthquake occurrences.

15. C. Developing and Deepening Understanding Earthquake Preparedness 1 Secure Your Home Reinforce structures, secure heavy objects, and develop a safety plan. 2 Prepare an Emergency Kit Gather supplies like food, water, first-aid, and communication devices. 3 Stay Informed Subscribe to emergency alerts and learn about earthquake safety procedures. 4 Practice Drills Conduct regular earthquake drills to ensure everyone knows what to do.

16. C. Developing and Deepening Understanding C. Developing and Deepening Understanding C. Developing and Deepening Understanding C. Developing and Deepening Understanding WORKED EXAMPLE Modeling Earthquake Scenarios Objectives : At the end of the activity, you should be able to understand the concepts of earthquake epicenter and focus, earthquake magnitude, and intensity. Materials: Modeling clay or playdough (different colors if possible), toothpicks, large shallow tray, sand or gravel, plastic syringe

17. C. Developing and Deepening Understanding C. Developing and Deepening Understanding C. Developing and Deepening Understanding C. Developing and Deepening Understanding WORKED EXAMPLE Modeling Earthquake Scenarios Instructions: 1. Use the modeling clay or playdough to create a big cross-section model of the Earth's surface. 2. Use a different color of clay to represent the focus of the earthquake within the Earth's crust. You can place this clay at varying depths to simulate earthquakes of different magnitudes.

18. C. Developing and Deepening Understanding C. Developing and Deepening Understanding C. Developing and Deepening Understanding C. Developing and Deepening Understanding WORKED EXAMPLE Modeling Earthquake Scenarios Instructions: 3. Use the toothpick to create structures on the surface of your model representing buildings, roads, and other infrastructure. 4. Simulate various earthquake magnitudes by pressing down on the focal clay with increasing force, from the smallest force to the highest force, generating variable amounts of shaking and devastation on the surface.

19. C. Developing and Deepening Understanding C. Developing and Deepening Understanding C. Developing and Deepening Understanding C. Developing and Deepening Understanding WORKED EXAMPLE Modeling Earthquake Scenarios Instructions: 5. Fill the large shallow container with sand or gravel to represent the ocean floor. 6. Add a layer of water to the container to simulate the ocean. 7. Use the plastic syringe to create underwater disturbance representing earthquakes.

20. C. Developing and Deepening Understanding C. Developing and Deepening Understanding C. Developing and Deepening Understanding WORKED EXAMPLE Guide Questions: What happens to the amount of damage in the infrastructure as you increase the force on the focus? If the clay represents the ocean plate and water surrounds the plate, how do you think the water will react with each force that you apply?

21. C. Developing and Deepening Understanding C. Developing and Deepening Understanding C. Developing and Deepening Understanding C. Developing and Deepening Understanding WORKED EXAMPLE Modeling Earthquake Scenarios Advanced (5 points) Proficient (4) Nearly Proficient (3) Emerging (2) Needs Improvement (1) The model represents the anatomy of an earthquake, and the answers to guide questions were well organized and completely explained in detail. The model represents the anatomy of an earthquake, and the answers were Well organized and completely explained, but not in detail. Some of the required parts in the anatomy of an earthquake is missing, and the answers were somewhat organized and explained but not in detail. Some of the required parts in the anatomy of an earthquake is missing, but the answers were not organized and not explained in detail. Most of the required parts in the anatomy of an earthquake is missing, and the answers were not organized and not explained in detail.

22. C. Developing and Deepening Understanding C. Developing and Deepening Understanding LESSON ACTIVITY Let the learners analyze the illustration and answer the questions that follow. 1. Which among the houses will experience the greatest damage? Explain your answer . 2. What are the things that you will consider in finding the safest location for you dream house? Process Questions:

23. D. MAKING GENERALIZATION Learners’ Takeaways KWL Chart: Using the graphic organizer, the students will answer the L column or what they have learned about the lesson. D. MAKING GENERALIZATION

24. D. MAKING GENERALIZATION Reflection on Learning What are the key factors that influence fault line behavior and how does this impact earthquake preparedness and disaster response? How can studying past earthquake events along fault lines inform our understanding of potential future earthquake risks and impacts?

25. D. MAKING GENERALIZATION Reflection on Learning How do local geography, infrastructure, and population density near fault lines affect earthquake preparedness and disaster response planning? What are some of the biggest challenges or limitations in our current understanding of fault line behavior and how can research and technology help address these gaps?

26. E. EVALUATING LEARNING E. EVALUATING LEARNING E. EVALUATING LEARNING _________ 1. Which of the following best illustrates the epicenter of an earthquake from its focus? A diagram showing the fault rupture and the location of the earthquake's origin point underground A graph plotting the earthquake's magnitude over time A map showing the distribution of seismic waves radiating outward from the epicenter All of the above

27. E. EVALUATING LEARNING E. EVALUATING LEARNING E. EVALUATING LEARNING _________ 2. To illustrate the intensity of an earthquake from its magnitude, which of these would be most effective? A table listing the Richter scale values and corresponding earthquake effects A simulation showing the shaking and damage levels at different distances from the epicenter A chart comparing the energy released by earthquakes of different magnitudes Both b and c

28. E. EVALUATING LEARNING E. EVALUATING LEARNING E. EVALUATING LEARNING _________ 3. Which of the following best demonstrates how underwater earthquakes may or may not generate tsunamis? A cross-section diagram of an ocean trench showing fault movement and wave propagation A time-lapse video of an underwater landslide triggered by an earthquake A graph plotting the water displacement and wave heights over time All of the above

29. E. EVALUATING LEARNING E. EVALUATING LEARNING E. EVALUATING LEARNING _________ 4. Which type of visualization would be most useful for illustrating the relationship between an earthquake's focus and its epicenter? A 3D model showing the fault plane and rupture propagation A map overlaid with concentric circles indicating the shaking intensity A cutaway diagram of the Earth's interior layers and tectonic plate boundaries Both a and c

30. E. EVALUATING LEARNING E. EVALUATING LEARNING E. EVALUATING LEARNING _________ 5. To show the difference in shaking intensity between a magnitude 6.0 and 7.0 earthquake, which of these would be most effective? A bar chart comparing the peak ground acceleration values An animation of the seismic wave propagation and ground displacement A table listing the Modified Mercalli Intensity scale ratings All of the above

31. E. EVALUATING LEARNING E. EVALUATING LEARNING E. EVALUATING LEARNING _________ 6. Which of the following best describes the epicenter of an earthquake? The point on the Earth's surface directly above the focus. The deepest point within the Earth where the seismic energy is released. The point within the Earth where the fault rupture begins. The area where the ground shaking is most intense.

32. E. EVALUATING LEARNING E. EVALUATING LEARNING E. EVALUATING LEARNING _________ 7. What is the primary factor that determines the magnitude of an earthquake? The depth of the earthquake's focus. The distance from the epicenter to the affected area. The amount of energy released by the seismic event. The type of fault responsible for the earthquake.

33. E. EVALUATING LEARNING E. EVALUATING LEARNING E. EVALUATING LEARNING _________ 8. How does earthquake intensity differ from earthquake magnitude? Magnitude measures the energy released, while intensity measures the damage caused. Magnitude measures the depth of the focus, while intensity measures the distance from the epicenter. Magnitude measures the ground shaking, while intensity measures the duration of the earthquake. Magnitude measures the area affected, while intensity measures the frequency of aftershocks.

34. E. EVALUATING LEARNING E. EVALUATING LEARNING E. EVALUATING LEARNING _________ 9. Which of the following is a potential effect of an earthquake on a community? Increased rainfall and flooding. Growth of vegetation and wildlife. Displacement of tectonic plates. Damage to buildings, infrastructure, and loss of life.

35. E. EVALUATING LEARNING E. EVALUATING LEARNING E. EVALUATING LEARNING _________ 10. What role does the focus of an earthquake play in determining its effects on the Earth's surface? The deeper the focus, the more severe the ground shaking. The shallower the focus, the greater the potential for tsunamis. The focus determines the direction of the seismic waves. The focus has no direct impact on the effects of the earthquake.

36. E. EVALUATING LEARNING E. EVALUATING LEARNING E. EVALUATING LEARNING B D D B A A C A D B ANSWERS KEY

37. Reference : SCIENCE 7 LESSON EXEMPLAR ● United States Geological Survey (USGS). (n.d.). Magnitude, intensity, and earthquake effects. In Earthquake Hazards Program. Retrieved from https://pubs.usgs.gov/gip/earthq3/magnitude.html ● Gomez, J., & Gomez, J. (2018, December 29). Tsunami alert in Philippines lifted hours after undersea quake. TheQuint . https://www.thequint.com/news/world/tsunami-alert-in-philippines-lifted-hours-after-undersea-quake