blog 11

 During the lab we talked about how layers of rock are different ages and how the top layers are younger. We began talking about different types of erosion like wind, water, and glacier. Then we looked at many different types of sand through a telescope. As groups we had to determine whether the sand was created from wind, water, or glacier erosion.  

During the discussion this week we talked about buoyancy and did an experiment on whether or not canned sodas will sink or float on water. We then began talking about Archimedes' principle. We read a book about how this principle came about. Then we did an experiment to find out whether a gold crown is full gold or had added fillers. We also talked about how this principle can be used with geo. Some students also got to cut a geo in half. 

What did you learn?

• I learned that geo’s can be created from air, water vapor,  and carbon dioxide bubbles  from within a rock. 

What was most helpful?

• The video about Archimedes' bath helped me have a visual idea of how the bath water affected his thoughts about weight and measurement.  

What do you need more information on?

• How Does sand move around? Since it's so light, sand eroded from glaciers moves to a place where sand is eroded from air?

What questions/concerns/comments do you have?

• I'm curious about what types of heat can be added to rocks to change its form. Does it have to be only heated by magma or can humans recreate the rock cycle with their own tools?