Week 11

     In lab this week, we started off with an assessment of our current knowledge surrounding climate science. We discussed the sweater article for the first twenty minutes of class. Ted explained our first year we are going to just be trying not to get fired. 

    Law of Superposition: (Rock walls driving in Dubuque) oldest stuff is on the bottom layer, layers above are younger. 

    Scientists map the layers of the Earth with drills. We looked at a variety of Earth layer examples with intrusions and discussed their timelines.

• Sand created through water - polished, smooth, and generally similar in size
  
• Sand created through glaciers - polished, smooth, but irregular in size
• Sand created through wind - opaque, frosted, pitted, and very fine grained

       (5) Oolitic Sand           (3) Volcanic Sand Hawaii            (4) Sand                  Granite (NY Sand)

      (1) Sand Hawaii                     (2) Sand Sahara           (6) Desert Dune Sand                        

Granite NY

(4)

Volcanic Hawaiian

Oolitic

    

  

Sahara Desert

Colorado Desert Dune

Hawaii

    

    Wind Erosion - moves small stuff but can eat away at larger particles

    Water Erosion - very powerful. young river: whitewater: lots of energy vs old river: low energy 

    Glacier Erosion - giant bulldozer scraping land away

    In lecture this week, we were in the PDA room. We tested different cans in a tub of water to see which floated. This connects to rocks because they sink. Water has gravity: 1. Geodes are: 2.7. We read a book about a gold crown, talking about weights and material. We test the displacement between the two clay crowns from the book.

    This week we watched the documentary Before The Flood. It was very interesting to see known celebrities talk about the factual implications of climate change and bring awareness.