Science Diagnostic Test PDF
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San Jose National High School
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Summary
This document contains a diagnostic test about geological features and phenomena, such as plate tectonics and earthquakes. It includes questions, objectives, and procedures on locating the epicenter of an earthquake. Further details about crust types, theory, and other related information are also included.
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DIAGNOSTIC TEST Direction: Determine the name of the various geological features and phenomenon. _A_ON _OLC___ Direction: Determine the name of the various geological features and phenomenon. SI_RRA...
DIAGNOSTIC TEST Direction: Determine the name of the various geological features and phenomenon. _A_ON _OLC___ Direction: Determine the name of the various geological features and phenomenon. SI_RRA _AD__ Direction: Determine the name of the various geological features and phenomenon. C_ R C_ M PA _ CF _ _ B_ L T HOW DO THESE GEOLOGICAL FEATURES AND PHENOMENA OCCUR? PLATE TECTONICS SPECIFIC OBJECTIVES: 1. Identify the relationship of plate tectonics theory and earthquake; 2. locate the epicenter of an earthquake using the triangulation method; and 3. give the importance of determining the epicenter of an earthquake. WHAT IS PLATE TECTONICS? WHAT IS PLATE TECTONICS? Plate tectonics is a geological science that studies the movements and nature of the earth's crust. vocabulary.com DIRECTION: IDENTIFY THE KINDS AND CHARACTERISTICS OF CRUST. less denser thicker thinner located beneath land masses both crust continental crust more dense oceanic crust located beneath the ocean both lies above the mantle DIRECTION: IDENTIFY THE KINDS AND CHARACTERISTICS OF CRUST. TRUE KINDS OF CRUST DIRECTION: IDENTIFY THE KINDS AND CHARACTERISTICS OF CRUST. CONTINENTAL CRUST CRUST OCEANIC CRUST What can you observe about this map? Plate tectonic theory states that the plates are slowly moving at a WHAT DO YOU THINK IS constant movement. THE RESULT OF THE CONSTANT MOVEMENT OF PLATES? Activity No. 1 Find the Center Objective: Locate the epicenter of an earthquake using the triangulation method. Materials: hypothetical records of earthquake waves Philippine Map Drawing compass and ruler Procedure: 1.Study the data showing the difference in the arrival time of P-wave and S-wave on three seismic recording stations. Procedure: 2. Compute the distance of the epicenter from each of the stations using this formula: d = Td/8 seconds x 100 km Where: d = distance (km) Td = time difference in the arrival time of P-wave and S- wave (seconds) Procedure: 3. Choose one of the recording stations and measure the computed distance on the map scale (the scale of the map in Figure 3 is 1.5 cm: 200 km). Set your compass for that computed distance. Procedure: 4. Center your compass on the station you have chosen. Draw a circle. 5. Repeat steps 3 and 4 for the rest of the stations. You should get three circles that intersect or nearly intersect at a point. This intersection is the epicenter. Procedure: Q1. Where is the epicenter of this hypothetical earthquake? Q2. What difficulty will you encounter if you only have data from two recording stations? Procedure: If the earthquake took place at a far greater distance, seismologists use the distance-time graph similar to the figure below in determining the location of the epicenter. Procedure: Procedure: The distance-time graph above shows that the S-P interval is about 10 minutes. Q3. What is the distance of the epicenter from the seismic station? Q4. What do you think is the importance of determining the epicenter of an earthquake? PRESENTATION What I learned? Direction: Use the following CRUST words to form a paragraph PLATE TECTONICS THEORY that will sum up all the things EARTHQUAKE you have learned about the EPICENTER DISTANCE lessons. P-WAVES AND S-WAVES Thank you for listening!