Week 7: Rock Cycle

 Week 7: Rock Cycle

1. What did we do in lab today? In lab today we how we currently assess students and what those grades mean. Grades today aren’t what they used to be, they’ve changed a lot over time. The issue is educators are continuing to follow the grade scale that just gives students what they want (the world we currently live in). The experiment we did in lab today modeled the three different types of rocks: sedimentary, igneous, and metamorphic. We made two examples of each rock using various materials like fire, aluminum foil, and starbursts. 

2. What was the big question? I felt like the big question of todays lab was what is the danger of comparing students using their test percentages. We have grown up knowing nothing, but getting perfect grades. Educators quite literally hand out A's to students that haven't grown or just jump through the hoops with zero effort given. Students need to gain knowledge and show improvement from what they had previously known to gain a grade. It takes pre-service teachers to stop the cycle of handing out A's and giving what students deserve to boost their knowledge.

3. What did you learn in Thursdays lecture? In lecture this week I got a refresher on how sugar in sodas makes the can more dense than the water. This was tested by Ted in a experiment with various different sodas, diet sodas, and even beer! We then learned how to calculate how hallow a geode is with the equation -> Specific Gravity= W(air)/ W (air) - W (water).

Textbook:

1. What did you learn? I learned how a geode is formed - through a cavity within the rock. A bubble of carbon dioxide and water vapor forms in flowing lava. As lava cools and gas dissolves it leaves an empty space behind. Another way a geode can form is a cavity where lava cools underwater. 

2. What was the most helpful? Learning more about Archimedes Principle was helpful as I didn't understand as well as I wanted in lecture. I found out that like Archimedes crown like a geode is an irregular shape therefore it is hard to measure the volume. That is why there is the principle that allows us to measure for specific gravity. 

3. What do you need more information on? I need to learn more in depth about the rock life cycle. I feel like I never really had a great grasp of it in middle school or high school so I definitely need a refresher.

1. What questions, comments, and/or concerns do you have? I just want to learn more about the rock cycle!






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