Week 7: Rocks and the Rock Cycle

 

  1. What did you do in lab today? This week in lab we spent the beginning of class discussing our exam, which I found helpful. We also began talking about our new unit of geology and did an investigation with starbursts. I unfortunately had to leave lab before we finished the investigation however. ​
  2. What was the big question? The big question we were discussing in lab this week was "Is it a rock?" ​
  3. What did you learn in Thursday’s discussion? This week in discussion we talked and learned more about different types of rocks. Ted walked us through an experiment that showed us how buoyancy works by having us guess if a soda can would sink or float. We also had 3 volunteers pick out a geode rock and try to find the most hallow one. We tested which was the most hallow by weighing the rock in water and air and used the Specific Gravity equation to measure. ​
  4. Read the online textbook chapter:                                                                                  What did you learn?​ While reading the textbook this week, something that I learned was the difference between Intrusive Igneous Rocks and Extrusive Igneous Rocks. I learned that Intrusive Igneous rocks cools more slowly because the magma is cooling underground. This then forms a large crystal. Contrarily, an Extrusive Igneous rock cools quicker and forms a smaller crystal because the magma cools in water or on the surface of the earth.                   What was most helpful?​ The most helpful part of this section of the textbook was descriptions of each different type of rock. I liked that there was a table at the beginning of the chapter that explained the different ways these rocks are classified, as well as the following section that described the different rocks in more detail.                                           What do you need more information on?​ I would like more information on Geodes. I think I have a fairly good understanding of these rocks as of right now, but I find these really cool and would like to learn more about them.  
  5. What questions, concerns, and/or comments do you have? One question I have is where are most of the large Geodes located in our world? I saw pictures in lecture this week that showed humans walking through huge geode rocks, and I want to learn more about how those rocks get to be so large, and where they are located. 

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