March 31, 2014 Bell Work P-Wave and S-Wave Shadow Zones In back of ISN On Weekly Bell Work Sheet Go to page 537 Title: Shadow Zones Copy both pictures in Figure 19.11 Read the captions to find out why each shadow zone occurs Write the reason next to each picture Title: Shadow Zones Explain why they occur: P-waves get refracted and change direction as they move through the mantle and inner and outer core S-waves disappear entirely when they reach the liquid outer core

April 1, 2014 Bell Work Richter vs. Mercalli Earthquake Scales Richter Scale Bill Nye In back of ISN On Weekly Bell Work Sheet Go to page 539and 540 Title: Richter vs. Mercalli Earthquake Scales List I, II, V, IX, X,and XII from Table 19.2 Modified Mercalli Scale Read about and explain the difference between the Richter Scale and the Modified Mercalli Scale Title: Richter vs. Mercalli Earthquake Scales Define both terms: Richter Scale Mercalli Scale Richter Scale Mercalli Scale The Richter scale was developed to assign a single number to quantify the. energy released by an earthquake. The Mercalli Scale assigns a number to quantify the damage and effects of an earthquake.

April 2, 2014 Bell Work Locating the Epicenter In back of ISN On Weekly Bell Work Sheet Go to page 542 Title: Locating the Epicenter Copy Figure 19.17 Determine the name of the famous city along the San Andreas Fault where all 3 circles intersect Title: Locating the Epicenter Read the last paragraph on page 542. Write a sentence explaining how many seismograph readings are needed to determine the epicenter of an earthquake

April 3, 2014 Bell Work In back of ISN On Weekly Bell Work Sheet Go to page 548 Title: When a Tsunami Reaches Shallow Water Copy figure 19.23 Read page 548 and explain what happens when a tsunami reaches shallow water Title: When a Tsunami Reaches Shallow Water Write 2 sentences explaining how a tsunami begins and what happens when it reaches a shallow area near the shore