2/28 MS Chemistry class and homework due 3/6

Hi folks,

Today we continued our discussion on states of matter by discussing why matter takes the different states that it does and getting a little more specific into what a solid is.   As part of our discussion of solids, we defined the terms, compression and tension.   In order to spend some time with this concept we did a challenge where students had to create a bridge out of popsicle sticks that had one end attached to the table and the other end had to go as far away from the table without touching the ground (See "The Bridge to Nowhere" in the .pdf for more information).   The students could quickly see how tension and compression were quite difficult to overcome.

By the way, I apologize but I didn't get a recording this week.  However, almost all the content in today's lecture can be found in the enclosed .pdf. 

For homework this week read the enclosed .pdf and answer all the questions at the end of the chapter.

ALSO answer the following questions based on today's lecture.

(If you missed today's lecture, feel free to look at the answers for the first 4 questions here.)

1.  What does temperature measure?

2.  As temperature goes up do molecules go faster or slower?

3.  Which state of matter tends to have the highest energy?

4.  Which state of matter tends to have the lowest energy?

5. What is the major difference between solids, liquid and gasses?

6.  What is the definition of tension?

7.  What is the definition of compression?

8.  The the "Bridge to Nowhere" challenge we did in class, where did you see tension and compression in the bridge?

Re: 2/14 MS Chemistry update and homework due 2/21

Hi all, 

We have made the decision to cancel Chemistry Feb 21st, due to weather. Our concern is that temps will likely be below freezing and we don't want anyone feeling pressured to drive through that. We will resume class next week. Thanks and stay warm!

Denise

On Sat, Feb 15, 2020 at 4:57 PM Jim Mueller <jim@bitesizephysics.com> wrote:

Hi folks,

Today we started our new block which is the states of matter.  We learned that atoms join together to form molecules and that molecules join together to form solids, liquids and gasses.  In the upcoming weeks, we will get up close and personal with all the states of matter and learn what temperature has to do with all this.  We also did a gameshow that allowed everyone to put their knowledge to the test.

For homework this week answer the following questions.  (Short homework this week since most of class was taken up with the review game show.)

1.  What are the four major states of matter?

2.  What one word makes the difference between each state of matter.  In other words, what is the major difference between each one.

3.  Do molecules change shape or form depending on which state of matter they are in?

4.  In the Universe, what is the most common state of matter?

5.  Draw a picture of several molecules in each of the 3 states of matter.  In other words, draw 3 different picture where each one represents several molecules in a state of matter.

Answers:

1.  Solid, liquid, gas and plasma.

2.  Bonds.  The major difference in each state of matter is the type of bonds that hold it together.

3.  NO!!!  Only the bonds are different.  The molecules don't change.

4.  Plasma

5.  

--

Denise

2/14 MS Chemistry Recording - States of Matter

https://youtu.be/xcawTTttDYU

2/14 MS Chemistry update and homework due 2/21

Hi folks,

Today we started our new block which is the states of matter.  We learned that atoms join together to form molecules and that molecules join together to form solids, liquids and gasses.  In the upcoming weeks, we will get up close and personal with all the states of matter and learn what temperature has to do with all this.  We also did a gameshow that allowed everyone to put their knowledge to the test.

For homework this week answer the following questions.  (Short homework this week since most of class was taken up with the review game show.)

1.  What are the four major states of matter?

2.  What one word makes the difference between each state of matter.  In other words, what is the major difference between each one.

3.  Do molecules change shape or form depending on which state of matter they are in?

4.  In the Universe, what is the most common state of matter?

5.  Draw a picture of several molecules in each of the 3 states of matter.  In other words, draw 3 different picture where each one represents several molecules in a state of matter.

Answers:

1.  Solid, liquid, gas and plasma.

2.  Bonds.  The major difference in each state of matter is the type of bonds that hold it together.

3.  NO!!!  Only the bonds are different.  The molecules don't change.

4.  Plasma

5.  

Bring Cell Phones to Class tomorrow

Hi folks,

We are going to do a bit of a game show review tomorrow so please bring your cell phones or some sort of internet connectable devices.

See you all tomorrow!

Best,

Jim Mueller

(919) 907-3217

2/7 Recording - Playing with the Periodic Table

https://youtu.be/Spp2epTaweg

2/7 MS Chemistry update and homework due 2/14

Hi folks,

Today we really took the time to play with our new found periodic table reading skills by doing a variety of races and games using valence electrons and bonds.

For homework this week, please do the enclosed worksheet. They are questions from throughout the year so it will make a nice review of what we've been covering. It may also make an excellent quiz, hmmmm…… :)

1/31 MS Chemistry Recording - Making Molecules

https://youtu.be/6PxM--vB8xs

1/31 MS Chemistry update and homework due 2/7

Hi folks,

Last week we touched on how atoms combine to make molecules and this week we really got into it.  We also introduced the concept of multiple bonds!

For homework this week please do the enclosed worksheet.  Answers are included so you can make sure you are on the right track.  

You can bet next week's quiz will have a lot of these on there so be prepared!