FIX! ESCI D.S5.O1.A5 Feedback Loops

Intro  to  Feedback  Loops    

Introduction:  The  dynamic  changes  that  take  place through  interactions  of  the  geosphere,   atmosphere,  hydrosphere  and  biosphere  can  be  better  understood,  modeled  and  predicted   through  the  use  of  feedback  loops.  In this activity,  you will  learn what  a  feedback loop  is and how they  are used.  Let's  begin with  the concept  of equilibrium. Equilibrium can  be defined  as a  system in  balance when the  inputs and  outputs do not  vary over  time. If something  is in  a   state of equilibrium  it is  stable but  not unchanging. When nature  is left  to itself,  it often  reaches equilibrium,  at least  until the  next volcano  or ice  age arrives. These events  are actions. People also  create the  “action”  when we  alter natural  systems.  The action  is often  followed by  an  “effect”.   Think of  what would  happen if  you reached  over and  poked the  person next  to you.    What effect  would you  expect this  to have on that person? Scientists call the reaction “feedback” and  it  can  be  negative  or  positive.  Do  not  let  these  terms   fool  you,  they  may  only  be  positive  or  negative  depending   on  your  point  of  view.  Let's  say the  person  next  to  you  yells  and  calls  the  teacher   over  to  report  your  misbehavior.    You  promise  not  to  poke  anyone  again.    This  would  be  an   example  of  a  negative  feedback  loop  because  the  feedback  reduces  the  action  in  the  future.   A  positive  feedback  loop  increases  the  likelihood  of  the  action  to  occur  again.    Often,  in  a   system  negative  feedback  loops  help  to  maintain  equilibrium.     Let's  look  at  some  other  examples.    Smiling  has  been  found  to  be  contagious.    Is  this  a  positive   or  negative  feedback  loop?    Does  one  smile  increase  or  decrease  the  chances  of  another?    

It doesn't matter what topic you use, but there are some good earth science ones like warming oceans and CO2. Im looking for you show me an example of a natural feedback look and for you to show me you understand what they are.

Positive feedback loops feed on themselves. Like this example (which you now can't use for your assignment :)) https://www.sciencedaily.com/releases/2012/05/120523101929.htm Links to an external site.

Negative feedback loops keep things in homeostasis, they keep them from changing.

Homeostasis and Negative/Positive Feedback Links to an external site.
So what you need to do is draw and explain a feedback loop. Tel me how one part of the loop feeds the other one and so forth. There are a lot of additional examples you can look up.

Your Assignment:

Submit your feedback loop diagrams. The easiest way to do this is to create them in Google Drive (drive.google.com). Click on "New" and then "Google drawings" (You may have to look under "more..." .  To submit, just share "anyone with the link" like you would any other Google Doc and as explained in the Google Doc tutorial in the intro module to the course. If you have another program you can do a drawing in you are free to use it as long it is sharable on Canvas either as a website URL or file upload.