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SC300 Big Ideas In Science: From Methods To Mutation Welcome to Unit 4 Energy: How Work Gets Done Tonight’s Agenda • Com

SC300 Big Ideas In Science: From Methods To Mutation Welcome to Unit 4 Energy: How Work Gets Done Tonight’s Agenda • Comments & Questions from Unit 3 • This Week in Unit 4 • Seminar Topic: Energy Transfer Through Food Webs. Questions?.

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SC300 Big Ideas In Science: From Methods To Mutation Welcome to Unit 4 Energy: How Work Gets Done Tonight’s Agenda • Com

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  1. SC300 Big Ideas In Science:From Methods To Mutation Welcome to Unit 4 Energy: How Work Gets Done Tonight’s Agenda • Comments & Questions from Unit 3 • This Week in Unit 4 • Seminar Topic: Energy Transfer Through Food Webs

  2. Questions?

  3. 1. What patterns to you see in the distribution of earthquakes across the continental United States? 2. Locate your home on this map and make a note of the relative risk to you by indicating the color where you live. 3. What patterns do you see in the distribution of earthquakes around the world? 4. Click on one of the earthquakes on the map and make a note of its magnitude and region. 5. Would you be willing to live in one of the red areas on the map? Explain. 6. If you and your family were forced to relocate to a red area, how could you use the USGS resources on earthquake readiness to help your family prepare themselves? 7. Examine the list of the most destructive earthquakes on record. What are the two most recent earthquakes on this list? What does this list tell you about the power of science to control or predict earthquakes? 8. Even though science cannot predict or prevent earthquakes, what seismological tools do we have to sense the planet's rumblings? What events do you think might have encouraged the development of these tools? 9. How is this kind of geological energy different from biological energy (such as the calories creatures get when they consume food)? How are they the same?

  4. Questions?

  5. Seminar Questions 1. What are some examples of food chains in the area where you live. Example: ivy > beetle > robin > house cat > coyote 2. Do you live on a food chain or a food web? Why do you think it is better to live as part of a food web than on a food chain? 3. In food chains and food webs, only about 10% of the energy expressed as calories from eating a creature get transferred up into the next level of the food chain. What happens to the other 90% of the calories?

  6. Questions?

  7. Differences • Biological energy • source is EM waves from sunlight • chemical energy via photosynthesis • energy transfer thru trophic levels • we get energy by eating/respiration • Geological energy • -source is heat from radioactivity • -plate tectonic motion transfers energy • Similarities • -all work requires energy • -both have potential & kinetic energy • -potential energy = stored energy • -kinetic energy = energy of motion • -scale & magnitude are planetary

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