Mr. Yerington’s Updates

News and Information from Mr. Yerington’s Classroom

Archive for April, 2008

Next Unit

Posted by iateacher on April 17, 2008

After our test over Mixtures and Solutions next Tuesday we will be preparing for our next unit.  This will be on earth science.  We will be discussing earthquakes, volcanoes, etc.  We WILL be using a book for this unit and the book IS available online.  We will be using the Prentice Hall book this time.  Students who signed up for a user name earlier in the year should still be able to access the book without doing anything else.  If students have forgotten their password they will need to see me in order to reset it.  If students have NOT yet set up a user name and password they can see me for the letter with directions.


Mr. Yerington

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Mixtures and Solutions Test 2008

Posted by iateacher on April 11, 2008

Attention Parents, Guardians and Students:

We are nearing the end of our mixtures and solutions unit.  The test (as of right now) is scheduled for Tuesday, April 22, 2008 and we will have a review session on that Monday.  There will not be an online sample test for this one because a lot of it is short answer and explaining which the computer can’t grade.  However, here are some things students need to be studying:


Students should know the meanings of the following vocabulary words:

  • mixture
  • solution
  • cubic centimeter (cc)
  • diatomaceous earth
  • NaCl
  • evaporate
  • crystals
  • properties
  • compound
  • solubility
  • concentration
  • precipitate


Students need to know:

  • the three ways we separated mixtures in class
  • what happens to a liquid when it evaporates
  • how to determine if a given chemical forms a solution
  • how to tell if a solution is saturated
  • some ways salt is used today
  • the two ways salt is obtained
  • how to determine the total weight of a solution given

The test is worth 51 points and since we are winding down the school year, please encourage your child to do their best and study hard!!  They will also be turning in notebooks at this time.  The notebooks will be worth about 60 points.


Mr. Yerington

Posted in Quiz and Test Announcements | Leave a Comment »


Posted by iateacher on April 8, 2008

Hi all.

I have been really slacking off on the ‘ole weblog I guess!  I should explain a bit about why that is.  My mother was supposed to go in for a left total knee replacement on March 13.  That didn’t happen due to something on the EKG that wasn’t right.  After a stress test that surgery was rescheduled for the 27th of March.  It took place and was a sucess.  She returned home on Tuesday, April 1.  I took Wednesday, Thursday, and Friday off to be with her so the updates just didn’t happen!!

Now then, on to what’s going on in class.  We are in the middle of our Mixtures and Solutions unit.  We have been working with various substances in this introductory chemistry unit.  The test will be coming up (I am guessing in two or three weeks) and there WILL be a posting here about what to study.  I will also see if I can get a web test together.  I won’t promise that, but I will try.

As always, please feel free to e-mail me with any questions!!


Mr. Yerington

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