Measuring Earthquake Activity Lesson Plan 7th /8th grade STANDARDS 11.A.3e Use data manipulation tools and quantitative (e.g., mean, mode, simple equations) and representational methods (e.g., simulations, image processing) to analyze measurements. 12.E.2b Describe and explain short-term and long-term interactions of the Earth’s components (e.g., earthquakes, types of erosion). 13.B.2a Explain how technology is used in science for a variety of purposes (e.g., sample collection, storage and treatment; measurement; data collection, storage and retrieval; communication of information). New Science Standards PS 4: Waves and their applications in technologies for information transfer ESS 2: Earth’s systems OBJECTIVES Students will understand how a seismograph provides information about earthquakes. Students will locate the epicenter of an earthquake using given data. MATERIALS seismograph worksheets compasses rulers ENGAGEMENT The teacher may wish to design a K-W-L chart on the blackboard to activate prior knowledge by using student responses to the following questions: What are causes of earthquakes? What is the cause of damage to structures? What is an earthquake’s epicenter? How do scientists learn about and measure earthquakes? EXPLORATION Review with PowerPoint slides that earthquakes are caused often by the release of friction along faults and that earthquakes originate from a focus, above which, on the crust is the epicenter. Observe photos of earthquake damage. Watch video of news footage of earthquake at school that had a seismograph in Virginia Beach. EXPLANATION Explain that p-waves and s-waves are body waves, or that they move through the Earth, while surface waves only move along the surface. Show video of p- and s-waves and show a horizontal seismograph. Demonstrate a rudimentary seismograph. Ask for volunteers to create an “earthquake” and record its activity. Discuss more about how p- and s- waves can be used to find the distance to the epicenter using the distance=rate x time formula because we know the rates and the time between the s and p waves. Discuss how an epicenter can be located through triangulation, or using the data of three different seismographs in different locations. EXTENSION Pass out and have students work individually or in pairs to locate the epicenter of an earthquake on a worksheet. EVALUATION Observe students as they locate the epicenter on the worksheet. Assess understanding based upon discussion of their results and how they found the answer. Differentiated Instruction: ELL: Provide advance organizer of lesson beforehand. Ask ESL teacher if she can help you create a handout explaining vocabulary words to give to students. For activity, have student work with more proficient English speaker who also speaks their native language LD: Provide advance organizer of lesson beforehand. Pair student during activity with a student who is often helpful. Gifted Students: Provide alternate earthquake epicenter location activities for extra credit. References: http://geology.csupomona.edu/drjessey/class/Gsc101/Earthquake.html Locating an Epicenter Name: _____________________ Teacher: Lynn Chueng Date: ______________________ Title of Work: ______________ Skills Criteria Try Harder Good Points Thumbs up Super Helping The teacher observed the students offering assistance to each other. Listening None of Some of Most of the All of the the Time the Time None of Some of Most of the All of the The teacher observed students working from each other's ideas. Participating: the Time the Time None of the Time Some of Most of the All of the None of the Time Some of Most of the All of the None of the Time Some of Most of the All of the None of the Time Some of Most of the All of the None of the Time Some of Most of the All of the The teacher observed each student contributing to the project. Accuracy: The teacher observed the students taking care to find accurate results Questioning: The teacher observed the students interacting, discussing, and posing questions to all members of the team. Respecting: The teacher observed the students encouraging and supporting the ideas and efforts of others. Safety: The teacher observed the students being careful with tools and materials. the Time the Time the Time the Time the Time Time Time Time Time Time Time Time Time Time Time Time Time Time Time ____ ____ ____ ____ ____ ____ ____ Total Points ____ Teacher Comments: Do not run with compasses Do not point compasses at yourself or others Put materials away where you found them when you are finished.