10/3/11

Announcements: None.
Homework: None. Quiz tomorrow on Ions and Ionic compounds.
Body: Today we went over some new material. Including atoms and the types of ions they form, formulas of ionic compounds and naming ionic compounds.

Here are the answers for the first section in IONS-1:

1.)

Li- 1+ Ca- 2+ N- 3- Al- 3+
Cl- 1- O- 2- Li- 1+ Ar- 0
Na- 1+ P- 3- S- 2- Mg- 2+

2.)

Na2S
FeCl3
CaO
MgF2
KCl
(skip the next two)
CaBr2
Al2O3

IONS-2

3.)

K2S
Caf2
MgO
LiF
Kcl
CaS
Li2S
AlBr3

4.)

Correct
AlCl3
Correct
Not going to react
Correct

The next scribe will be..... Jacob R!

Wednesday-9/28/11

Announcements: None

Homework: Finish Chemthinks (2) and the Metals,Nonmentals, and Metalloid Lab due friday

-Take notes for the Chemthinks

Body:

Mr. Paek introduced a new lab in class about becoming familiar with chemical and physical properties of metals, nonmentals, and metalloids.

Here are the results from the lab if you missed it

Part one:

Sample A- silver, shiny, metalic, and round.

Sample B- Black, clusters, small, ashy

Sample C- Tiny, shiny, glittery, dark gray

Sample D- Pebbles, metalic, silver, mini

Sample E- Dust, yellow, powder-like

Sample F- silver, tiny

Sample G-gray,dusty,chalk-like

Part two:

Sample A-malleable

Samble B-brittle

Sample C-malleable

Sample D-malleable

Sample E-brittle

Sample F-Malleable

Sample G- malleable

Part three:

Sample A-conductor

Sample B-non conductor

Sample C-conductor

Sample D-conductor

Sample E-non conductor

Sample F-non conductor

Sample G-non conductor

Part Four: (Do HCL only)

Sample A- stays the same, no reaction

Sample B- Stays the same, no reaction

Sample C-bubbles and fizzes, water changes color, reaction

Sample D- No reaction

Sample E- no reaction

Sample F-bubbles, reaction

Sample G-bubbles, reaction

Part Five- (skip densities and do CuCl2 only)

sample a-turns black, melts and bubbles, reaction

sample b- bubbles, reaction

sample c-turned black, reaction

sample d- no reaction

sample e-no reaction

sample f- color changes to green and is warm, reaction

sample g-color changes to brown, reaction

Finish the postlab questions by looking at the element info/properties :)

Next scribe is RESSSSLER.

Class on 9/16/11

Announcements: Unit Test on Thursday, Chem Day on Friday

Homework: Finish Web-Assigns before unit test

Body

Mr. Paek went over the differences between Molecules and Compounds, and also the difference between a Mixture and a Pure Substance

Molecule: Any 2 or more atoms bonded together

Compounds: 2 or more DIFFERENT types of atoms bonded together

Mixture: Combo of 2 DIFFERENT types of Molecules or Atoms

Pure Substance: Only 1 type of atom or molecule

We also did a Matter Lab where we drew pictures of what we saw at each station, wrote the chemical formulas of what was present, and then make a list of terms that apply to the station.(ex. Atoms, Molecules, Elements, Compounds, Pure Substance, Mixture)

Black=C

Yellow=H

Green=O

STATION 1

Picture: 6 black atoms Formula: 6C Terms: Atoms, Pure Substance, Element

STATION 2

Picture: 4 yellow molecules(2 yellows bonded) Formula: 4H2 Terms: Molecules, Pure Substance

STATION 3

Picture: 1 black atom, 1 black molecule(2 blacks bonded), 2 green atoms, 1 yellow molecule(2 yellows bonded), 1 compound(2 yellows, and a black bonded) Formula: 2O + CH2 + H2 + C2 +C Terms: Molecule, Atom, Compound

STATION 4

Picture: 1 black atom, 1 black molecule(2 black bonded), 1 black molecule(3 blacks bonded) Formula: C2 + C3 + C Terms: Mixture, Atom, Molecule

STATION 5

Picture: 2 green atoms, 1 green molecule(2 greens bonded) Formula: O2 + 2O Terms: Atom, Molecule, Mixture

STATION 6

Picture: 2 Compounds(3 yellows, 1 black, 1 green bonded) Formula: 2H3 2C 2O Terms: Molecule, Compound, Pure Substance

And THAT is what we did on Friday

The next scribe will be...................................Dambi

Measurements 9.14.11

Announcements: None

Homework: Web-assigns

Body:

Went to Science Lab and registered into ChemThink!

1. On moodle go to Chemistry
2. Click "link to ChemThink"
3. Then below the log-in click the "Not Registered"
4. Put your username: ID Password: anything
5. activation code: 6163-2734-5502
6. Log in as soon as you have completed making an account
7. As soon as you log in click "Introduction" ; "Particulate Nature of Matter" ; "Tutorial"
8. Take notes during tutorial then at the end take the quiz
9. If in one try you get 10 out of 10 extra credit is given :)
10. Keep trying till you get 10 right!!!

This is what we did all day and if you finished it early you got to do web-assigns :D

The next scribe will be...........Katrina:D

9/8/2011- Measurement

Anouncements: No Quiz this week was moved to next week.

Homework: Do fig sig worksheet

Do web assign before 11:59 before the day of the test

Body: Today in class we took a lab quiz.

Lets try this again the next scribe will be........ Nawon!

9/7/2011 - Measurement

Anouncements : Quiz Thursday on Density and Sig Fig

Homework: 1. Finish Lab

2. Sig FIg Worksheet due Friday

Body : Today in class Mr. Paek went over the homework from last night. It is very important if you don't understand or unsure of anything to go see Mr. Paek to receive help. Tomorrow the class will be taking a Lab quiz. Lab Quizzes are something Mr.Paek gives before a Test to see how your doing on the material in class, it also tells you where your at as well so you know if you should be studying more or not.

Data for Measurement Lab 2

Part 1

2. Mass = 27.06cm, Length= 6.12cm, Width= 1.19cm, Height= 6.12

PART 2

4. mass=1.469, volume of water=5 ml, volume + water object= 5.21

PART 3

10 ml graduated cylinder 100 ml graduated cylinder

initial mass of empty cylinder 29.18 g 137.344 g

final mass of cylinder + liquid 32.139 169.2

volume of liquid 3 33

And the next Scribe will be.........Katrina

9/2/2011- Measurement

Anouncements: Took quiz .

Homework: Do scientific notation 1 page in notebook.

Body: Today in class we went to the computer lab and learned how to use web assign. To get to it go on Moodle and click on web assign link. Once your at the site you need to log in. To log in use your I.D number for the username and password. After we finished with the web assign we went back to class and took the quiz on measurements. At the end of class Mr. Paek taught us how to use scientific notation to help us on our homework.

The next scribe will be...........Robert.

9/01/11

Announcements: Quiz tomorrow (9/2)

Homework: Measurement 3-6, Lab due Friday (9/2), Measurement lab questions

Overview: Today in class we got started on Measurement Lab 1. We grabbed a meter stick, a ruler, a metal bar, a paper clip, a pencil, a nail, and a plastic brick. We measured our height in meters, did some conversion with m-km and for every km, there are 100m. We then measured the square/rectangular object's dimensions and recored each measurement and multiplied each side by each other and that gave us the volume which is always followed by the units (cubed). We then took out the graduated cylinders and found the volume of things that are harder to find like the nail. Finally we used the electronic scales in the back to measure the mass of each object.

And the next scribe will be........Sean G

8/31/2011

Announcements: Quiz on measurements on friday

Homework: finish lab write-up

Overview: Today in class we talked about safety in chemistry, and we watched a science lab safety video. After we finished, we got paapers about measurements and taped them in our notebooks (two to a page). After that, we reviewed the Variables sheet that we taped in our notebooks last week.

answers to variables sheet that we answered in class:

1.

I- amount of water
D- growth of plant
C1-light

C2-type of plant

2.

I-Coffee filter size

D-time to fall

C1-distance it's falling

C2-type of coffee filter

3.

I-type of food

D-temp.

C1-amount of water

C2-time

4.

I- concentration of oxygen
D-growth

C1-type of plant

C2-placement of plant

science safety video:

http://www.youtube.com/watch?v=3-Sm_h19prU

The next scribe post will be.............jacob g.

August 30, 2011 Part 3 of the alka seltzer lab

Announcements: None

Homework: Finish your lab report by this Friday.

Overview: Today in class we got laptops to use in class to start/ finish our lab reports. We got about 35 minutes to do so, and to do it you log on to google docs and add both your partner and Mr. Paek. You and your partner will be able to write at the same time, and Mr. Paek will grade by the seperate colors they come up as. On the lab report, you need to include a graph which is found on moodle. Click the link Make a graph and choose the type of graph you would like. After we finished that, Mr. Paek talked to us about safety and then showed us a lab demonstration. In the demo Mr. Paek took the bubles from dish wash soap and lit them on fire in his hand.

The next scribe post will be......... Jesse

August 29, 2011 - Part 3 of The Alka-Seltzer Lab

Announcements - None!

Homework - Bring goggles and/or safety contract if you have not already done so!

Overview -

It is not just three days anymore, it is the first full week (= 7 days) of the 2011-2012 school year. To start off the Monday, Mr. Paek went over the scribe rules - since it is new to most people. Then, we walked through part 2 of the Alka-Seltzer lab just to save time and go on to part 3. For the remainder of the period, each group got to make their own experiment and end up writing the first two parts of the experimental design which are: Problem and Hypotheses (this order can be found on the third sheet of the lab that is taped in your composition notebook). Tomorrow, we will be working on google.doc to type up our whole experimental design. So try to be here! We did not take any notes and this is all that happened in class today.

The next scribe is..................................... Matthew.

August 26- The First Friday and a Lab Begins

Announcements- Bring/Buy Googles if you haven't done it yet

Homework- None

Overview:

The first Friday of the 2011-2012 school year starts of with notes and then a BANG. We started of taking notes on basic science that most of us learned in 8th grade. For example, variables and basic experiment proceeder. We taped in all seven of our note pages for the unit and then took some extra notes on specific variables.

Independent- the variable that experimenter is changing (light, temperature, location, ext.)

Dependent- the variable that can be measured (distance, health, size, ext.)

Control- the elements in the experiment that stay the same and stay constant

After notes we started an experiment that nearly gave me a heart attack. We added seltzer tablets to film canisters filled with water. The tablets created gas bubbles and if the seal of the canister we tight then when the bubbles built up the canister popped. It was quiet scary and we made many dents in the ceiling.

The next scribe will be .................... Izzy R.!! Wooh!

The Scribe List

This is The Scribe List. Every possible scribe in our class is listed here. This list will be updated every day. If you see someone's name crossed off on this list then you CANNOT choose them as the scribe for the next class.

This post can be quickly accessed from the [Links] list over there on the right hand sidebar. Check here before you choose a scribe for tomorrow's class when it is your turn to do so.

IMPORTANT: Make sure you label all your Scribeposts properly (Your display name, unit title) or they will not be counted.

Jesse     Dana     Sean     Jacob      Brendan    Joseph     Matthew     Daniel     Dambi   Grace    Janna     Serena     Joel   Nicole    Mirella     Allyson   Nawon     Robert     Izabella     Caroline     Jacob     Christine     Katrina     Ariella

Scribepost Format

Title: date and topic of day - for example - 11.13.10 - Measurement



Announcements - put here in bullet or numbered format


Homework -  put here in bullet or numbered format


Body:  this is solely up to you how you do this.  please remember, you don't do many of these - do yours the best that you can - for yourself and for your classmates.  Headings in bold, pictures, videos, examples, announcements, homework are some of the elements that make for a successful post.


End with a pick of who the next scriber will be.


Labels: Need 2 of them:

1. your display name (this will be your first name and first initial, no caps, no spaces)
2. unit name (check moodle for proper name of unit)

Googled

Copied in it's entirety from Seth Godin's blog.

---

A friend advertised on Craigslist for a housekeeper. Three interesting resumes came to the top. She googled each person's name.

The first search turned up a MySpace page. There was a picture of the applicant, drinking beer from a funnel. Under hobbies, the first entry was, "binge drinking."

The second search turned up a personal blog (a good one, actually). The most recent entry said something like, "I am applying for some menial jobs that are below me, and I'm annoyed by it. I'll certainly quit the minute I sell a few paintings."

And the third? There were only six matches, and the sixth was from the local police department, indicating that the applicant had been arrested for shoplifting two years earlier.

Three for three.

Google never forgets.

Of course, you don't have to be a drunk, a thief or a bitter failure for this to backfire. Everything you do now ends up in your permanent record. The best plan is to overload Google with a long tail of good stuff and to always act as if you're on Candid Camera, because you are.

Digital Ethics

Much of what is written here is from a teacher experienced with using the web as a forum for us to share our learnings and reflections. Darren Kuropatwa writes, "Blogging is a very public activity. Anything that gets posted on the internet stays there. Forever. Deleting a post simply removes it from the blog it was posted to. Copies of the post may exist scattered all over the internet. I have come across posts from my students on blogs as far away as Sweden! That is why we are being so careful to respect your privacy and using first names only. We do not use pictures of ourselves. If you really want a graphic image associated with your posting use an avatar -- a picture of something that represents you but IS NOT of you."

Reflect as you watch this.



Two teachers in the U.S.A. worked with their classes to come up with a list of guidelines for student bloggers.

One of them, Bud Hunt, has these suggestions, among others:

1. Students using blogs are expected to treat blogspaces as classroom spaces. Speech that is inappropriate for class is not appropriate for our blog. While we encourage you to engage in debate and conversation with other bloggers, we also expect that you will conduct yourself in a manner reflective of a representative of this school.
2. Never EVER EVER give out or record personal information on our blog. Our blog exists as a public space on the Internet. Don’t share anything that you don’t want the world to know. For your safety, be careful what you say, too. Don’t give out your phone number or home address. This is particularly important to remember if you have a personal online journal or blog elsewhere.
3. Again, your blog is a public space. And if you put it on the Internet, odds are really good that it will stay on the Internet. Always. That means ten years from now when you are looking for a job, it might be possible for an employer to discover some really hateful and immature things you said when you were younger and more prone to foolish things. Be sure that anything you write you are proud of. It can come back to haunt you if you don’t.
4. Never link to something you haven’t read. While it isn’t your job to police the Internet, when you link to something, you should make sure it is something that you really want to be associated with. If a link contains material that might be creepy or make some people uncomfortable, you should probably try a different source.

Thoughts on the videos or on these guidelines? Any other guidelines you'd like to add?

Welcome to Period 5 Chemistry!

Period 5, welcome to our blog!  I am genuinely excited to have you in this class. This is going to be a site by you and for you.  It'll be a place to share your knowledge with fellow classmates, to reflect on what you've learned, and to learn concepts that you may have missed in class.  You will only have to write 3-4 of these per SEMESTER.  Please do yours the best that you can.  Your class and others are depending on you and will appreciate it.  We'll talk more about the details later.

Just remember, you must add at least 2 labels to every post.

1. Your screen name

2. Unit the post is about