| Learning Cycle: Earth's Dynamic Geosphere | ||||
| Understanding and Applying What You Have Learned | ||||
| 1. Think about the air you are breathing. How much of it came from some distant volcano? 2. If a volcano erupted huge amounts of ash, would you expect global temperatures to go up or down? Why? |
3. If warm air rises, why would hot gases from a volcano be a threat to people in the valley below? (Hint: think about volume’s effect in your work with the lava flow lab.) 4. If a system consists of many parts that affect each other, how are volcanoes part of systems on Earth? |
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| Preparing for the Chapter Challenge | ||||
| Use the information in this activity to argue that volcanoes have affected virtually every community. | Consider ways in which you can include these arguments in your story line. | |||
| Inquiring Further | ||||
| 1. Cascades eruptions Examine the figure showing the eruptions of Cascade volcanoes during the last 4000 years. a) Which volcano has been most active? Which volcano has been least active? Explain. |
b) What three volcanoes do you think are most likely to erupt next? c) Visit the AGI EarthComm web site for a link to the USGS Cascades Volcano Observatory web site. Find out about their monitoring efforts. |
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