Weekly Blog- 10/19
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Summary:
Starting the week with learning about seafloor spreading and subduction brought back some information from "Snack Tectonics." Seafloor spreading is when the mid-ocean ridge produces magma and it flows to both sides creating new ocean floor. The farther you travel from from the mid-ocean ridge the older the rock gets. With seafloor spreading wouldn't you think that the world would get bigger and bigger? Well, that isn't how it works. As the magma cools it gets heavier and moves farther out. Not only does it move out it it moves down because the rock gets heavier as it cools. It moves down into a subduction zone where it gets heated up and flows out of the mid-ocean ridge again. Subduction zones are like canyons where the heavy, cool rock falls. The cycle repeats over and over. After learning about that, we started onto our Tectonically Speaking Project. My group and I chose the Mistaken Identity Project and we began our research. Throughout the research I learned more and more about earthquakes in general and about earthquakes in San Francisco. *Fun Fact- There has never been a recorded 10.0 earthquake though there is a close second, a 9.5 earthquake in Chile.
SP1: Asking questions and defining problems:
I formulated testable questions when my team and I came up with questions to research for our project. We started by asking ourselves what answers can help us back up our theory. We started by asking vague questions then went into more detail as we didn't get the answers we were hoping for. For example we asked "When was the largest earthquake in San Francisco?" and then changed it to "When was the largest earthquake in San Francisco and what was the magnitude?" Finally we got the information we needed and started on our presentation.
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Summary:
Starting the week with learning about seafloor spreading and subduction brought back some information from "Snack Tectonics." Seafloor spreading is when the mid-ocean ridge produces magma and it flows to both sides creating new ocean floor. The farther you travel from from the mid-ocean ridge the older the rock gets. With seafloor spreading wouldn't you think that the world would get bigger and bigger? Well, that isn't how it works. As the magma cools it gets heavier and moves farther out. Not only does it move out it it moves down because the rock gets heavier as it cools. It moves down into a subduction zone where it gets heated up and flows out of the mid-ocean ridge again. Subduction zones are like canyons where the heavy, cool rock falls. The cycle repeats over and over. After learning about that, we started onto our Tectonically Speaking Project. My group and I chose the Mistaken Identity Project and we began our research. Throughout the research I learned more and more about earthquakes in general and about earthquakes in San Francisco. *Fun Fact- There has never been a recorded 10.0 earthquake though there is a close second, a 9.5 earthquake in Chile.
SP1: Asking questions and defining problems:
I formulated testable questions when my team and I came up with questions to research for our project. We started by asking ourselves what answers can help us back up our theory. We started by asking vague questions then went into more detail as we didn't get the answers we were hoping for. For example we asked "When was the largest earthquake in San Francisco?" and then changed it to "When was the largest earthquake in San Francisco and what was the magnitude?" Finally we got the information we needed and started on our presentation.
Great explanation!
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