1. Teacher Guide This lesson is designed to teach kids to ask a critical thinking question that you can’t just put into a search box to solve. To do that, we encourage them with smaller questions that search can help them answer. Make sure that you read the notes for each slide: they not only give you teaching tips but also provide answers and hints so you can help the kids if they are having trouble. Remember, you can always send feedback to the Bing in the Classroom team at BingInTheClassroom@Microsoft.com. You can learn more about the program at bing.com/classroom and follow the daily lessons on the Microsoft Educator Network. BingInTheClassroom@Microsoft.combing.com/classroomMicrosoft Educator Network Want to extend today’s lesson? Consider using Skype in the Classroom to arrange for your class to chat with another class in today’s location, take a Skype lesson on today’s topic, or invite a guest speaker to expand on today’s subject. And if you are using Windows 8, the panoramas in the MSN Travel App are great teaching tools. We have thousands of other education apps available on Windows here. Skype in the Classroom another class take a Skype lesson invite a guest speaker MSN Travel App here Nell Bang-Jensen is a teacher and theater artist living in Philadelphia, PA. Her passion for arts education has led her to a variety of roles including developing curriculum for Philadelphia Young Playwrights and teaching at numerous theaters and schools around the city. She works with playwrights from ages four to ninety on developing new work and is especially interested in alternative literacies and theater for social change. A graduate of Swarthmore College, she currently works in the Artistic Department of the Wilma Theater and, in addition to teaching, is a freelance actor and dramaturg. In 2011, Nell was named a Thomas J. Watson Fellow and spent her fellowship year traveling to seven countries studying how people get their names. This lesson is designed to teach the Common Core State Standard: Reading—Informational Text CCSS.ELA-Literacy.RI.4.3CCSS.ELA-Literacy.RI.4.3 Explain events, procedures, ideas, or concepts in a historical, scientific, or technical text, including what happened and why, based on specific information in the text. CCSS.ELA-Literacy.RI.4.5CCSS.ELA-Literacy.RI.4.5 Describe the overall structure (e.g., chronology, comparison, cause/effect, problem/solution) of events, ideas, concepts, or information in a text or part of a text. CCSS.ELA-Literacy.RI.4.9CCSS.ELA-Literacy.RI.4.9 Integrate information from two texts on the same topic in order to write or speak about the subject knowledgeably.

2. © Diane Cook and Len Jenshel/Getty Images The eruption of Mount St. Helens was triggered by an earthquake. Can scientists predict when an earthquake is going to strike? Why or why not?

3. On a quiet Sunday morning 35 years ago today, Mount St. Helens erupted in a two-part spectacle of geologic fury. The Cascade peak in southwest Washington State had been dormant since the 1850s, but in March of 1980, small earthquakes and steam-vent eruptions signaled to geologists that the sleeping giant might be waking. Just after 8:30 AM on May 18, 1980, an earthquake on the north face triggered the largest landslide in recorded history, as most of the north face broke loose and slid toward nearby Spirit Lake. Within seconds, the exposed magma below erupted, shooting a billowing column of ash 15 miles into the atmosphere. Ash and debris clogged the Toutle River, permanently altering its course, and also blocked Spirit Lake’s natural outlet of water. Multiple car and rail bridges were also blasted away by the rush of searing mud. In the end, 57 people died, along with thousands of animals. Two years later the Mount Saint Helens National Monument was established by President Reagan. A portion of the area was cordoned off for research while educational sites were opened to the public. The remainder of the land was left to recuperate naturally. The eruption of Mount St. Helens was triggered by an earthquake. Can scientists predict when an earthquake is going to strike? Why or why not?

4. 1 Web Search What causes earthquakes? 2 Web Search Why does the earth shake when there’s an earthquake? 3 Web Search/Thi nking What helps scientists predict where earthquakes might occur? 4 Web Search Why is it difficult to predict earthquakes? 5 Web Search/Thi nking What is the difference between a prediction and a forecast? Is one more appropriate for earthquakes? The eruption of Mount St. Helens was triggered by an earthquake. Can scientists predict when an earthquake is going to strike? Why or why not?

5. 5 Minutes The eruption of Mount St. Helens was triggered by an earthquake. Can scientists predict when an earthquake is going to strike? Why or why not?

6. 1 Web Search What causes earthquakes? 2 Web Search Why does the earth shake when there’s an earthquake? 3 Web Search/Thi nking What helps scientists predict where earthquakes might occur? 4 Web Search Why is it difficult to predict earthquakes? 5 Web Search/Thi nking What is the difference between a prediction and a forecast? Is one more appropriate for earthquakes? The eruption of Mount St. Helens was triggered by an earthquake. Can scientists predict when an earthquake is going to strike? Why or why not?

7. 1 Web Search What causes earthquakes? The eruption of Mount St. Helens was triggered by an earthquake. Can scientists predict when an earthquake is going to strike? Why or why not?

8. 2 Web Search Why does the earth shake when there’s an earthquake? The eruption of Mount St. Helens was triggered by an earthquake. Can scientists predict when an earthquake is going to strike? Why or why not?

9. 3 Web Search/Thi nking What helps scientists predict where earthquakes might occur? The eruption of Mount St. Helens was triggered by an earthquake. Can scientists predict when an earthquake is going to strike? Why or why not?

10. 4 Web Search Why is it difficult to predict earthquakes? The eruption of Mount St. Helens was triggered by an earthquake. Can scientists predict when an earthquake is going to strike? Why or why not?

11. 5 Web Search/Thi nking What is the difference between a prediction and a forecast? Is one more appropriate for earthquakes? The eruption of Mount St. Helens was triggered by an earthquake. Can scientists predict when an earthquake is going to strike? Why or why not?