You may have to click through to get the full HD effect, but it's worth it. The shuttle scene is joyously OMG.
Enjoy!
Monday, October 26, 2009
CHEM: Day 42 Homework
Good evening, gentlemen -
Here is your homework for tomorrow.
1) Read pp 379 - 388
2) ?s - p 394: 64 - 67, 69
M p 189: 24
For Period 1: Read Experiment and complete the pre-lab questions. You will turn these in tomorrow.
Here is your homework for tomorrow.
1) Read pp 379 - 388
2) ?s - p 394: 64 - 67, 69
M p 189: 24
For Period 1: Read Experiment and complete the pre-lab questions. You will turn these in tomorrow.
Friday, October 23, 2009
CHEM: Day 41 Homework
This shouldn't take you too long.
1) Read pp 659 - 664
2) ?s - p 359: 117, 118
p 393: 61-63
M p 54: 20c, 21ab
That's it.
1) Read pp 659 - 664
2) ?s - p 359: 117, 118
p 393: 61-63
M p 54: 20c, 21ab
That's it.
Monday, October 19, 2009
CHEM: Day 38 Homework
Wake up, Gromit! Time for walkies!
It's a busy week. Test, lab, lab report, and only two days to teach with. As Dad used to say, "Plan your work and work your plan, son."
Homework for your next class:
1) Read pp 368 - 377
2) ?s - M pp 58-59: 28ac, 31
M p 54: 19ab, 20ab
If you have lab tomorrow:
Read Exp 9 and be ready. It's not a long lab, and there's a lot of waiting in two places. Not too bad. Hopefully you'll be done early.
Lab reports for Exp 6 due:
Wed - Periods 1, 4, and 8
Thurs - Period 3
Your (optional) moles are due on Thursday. No ODE on the moles!
Let's get to work.
It's a busy week. Test, lab, lab report, and only two days to teach with. As Dad used to say, "Plan your work and work your plan, son."
Homework for your next class:
1) Read pp 368 - 377
2) ?s - M pp 58-59: 28ac, 31
M p 54: 19ab, 20ab
If you have lab tomorrow:
Read Exp 9 and be ready. It's not a long lab, and there's a lot of waiting in two places. Not too bad. Hopefully you'll be done early.
Lab reports for Exp 6 due:
Wed - Periods 1, 4, and 8
Thurs - Period 3
Your (optional) moles are due on Thursday. No ODE on the moles!
Let's get to work.
Saturday, October 17, 2009
Study break links
I haven't been having enough fun here. I do however save links. Here are a few.
This is not what I want to see if my car alarm ever goes off. Especially in Dallas.
I think only the first picture is really good, but they're all kind of funny.
This is fantastic. Click on the pic to enlarge and scroll down for the full effect.
I remember working with a professor doing early work on this. Loads of potential here.
Now THAT is an off-road vehicle.
And I really want to live here. Room for all my stuff!
And I want to have this in my backyard.
And go to at least one of these places. (Besides home.)
The Nobel Prize winner in Chemistry for 2009.
Learn a little about the night sky. (This one takes a little while.)
If you've read through all of these at once, you'd better get back to work!
This is not what I want to see if my car alarm ever goes off. Especially in Dallas.
I think only the first picture is really good, but they're all kind of funny.
This is fantastic. Click on the pic to enlarge and scroll down for the full effect.
I remember working with a professor doing early work on this. Loads of potential here.
Now THAT is an off-road vehicle.
And I really want to live here. Room for all my stuff!
And I want to have this in my backyard.
And go to at least one of these places. (Besides home.)
The Nobel Prize winner in Chemistry for 2009.
Learn a little about the night sky. (This one takes a little while.)
If you've read through all of these at once, you'd better get back to work!
Friday, October 16, 2009
CHEM: Summaries
Sorry, kids, your summaries need a lot of work.
I figured I'd give you an example or two of good summaries. These follow the three stipulations for a good review of the experiment:
1) Restate your objective.
2) Discuss your results.
3) Make a suggestion for doing the lab better next time.
So, for Experiment 7 (the reactions lab):
This experiment used twelve different combinations of substances to demonstrate single-displacement and double-displacement reactions. Eight of the twelve reactions were double-displacement reactions, most of which produced a precipitate; one produced bubbles of gas. One reaction produced no product and was therefore reversible. The other four single-displacement reactions combined hydrogen, copper and zinc as both ions and metals. From the results zinc was determined to be the most reactive of the three, followed by hydrogen and then copper. Performing the reactions allowed us to verify that were were predicting which products would be precipitates or gases correctly with our observations. In the future larger amounts of the reactants could be used, so that the chemical changes could be more easily observed.
Now, I know that I write in a different style than you do. I'm not looking for absolute mimicry in form, style and tense. That would be annoying for all of us. Note though that I am not saying anything about how "fun" or "cool" or "neatobegeato" the experiment was. I know how cool they are, because I picked them out for you.
For Experiment 5 (the molecular modeling lab):
In this experiment five different molecular modeling techniques illustrated different techniques for illustrating how atoms bond together and in what shapes. We used ball-and-stick models and MolyMod kits to build two-dimensional and three-dimensional representations of molecules, and to illustrate changes in bonding during simple chemical reactions. Soap bubbles and films demonstrated how systems under stress can find arrangements to minimize those stresses, as atoms in molecules do. All of these shapes were used as templates to build Stuart space-filling models of more complex molecules using the arrangements of atoms we had already seen, around oxygen and carbon atoms. The Stuart models provided no built-in guidance as the MolyMod kits did for arranging the atoms, so our models of hexane and dimethyl ether were too linear. We did not make the common connections between different types of models until writing up this report. If we had to do this lab again, I would bring better drawing tools than a dull pencil and scratch paper, and I would take more time drawing the shapes so they made more sense later.
This is the kind of analysis I'm looking for - more discussion of results and what was learned, a short statement for improving the lab, and less filler. Try this on your Summary for Experiment 6 and let's see what happens.
I figured I'd give you an example or two of good summaries. These follow the three stipulations for a good review of the experiment:
1) Restate your objective.
2) Discuss your results.
3) Make a suggestion for doing the lab better next time.
So, for Experiment 7 (the reactions lab):
This experiment used twelve different combinations of substances to demonstrate single-displacement and double-displacement reactions. Eight of the twelve reactions were double-displacement reactions, most of which produced a precipitate; one produced bubbles of gas. One reaction produced no product and was therefore reversible. The other four single-displacement reactions combined hydrogen, copper and zinc as both ions and metals. From the results zinc was determined to be the most reactive of the three, followed by hydrogen and then copper. Performing the reactions allowed us to verify that were were predicting which products would be precipitates or gases correctly with our observations. In the future larger amounts of the reactants could be used, so that the chemical changes could be more easily observed.
Now, I know that I write in a different style than you do. I'm not looking for absolute mimicry in form, style and tense. That would be annoying for all of us. Note though that I am not saying anything about how "fun" or "cool" or "neatobegeato" the experiment was. I know how cool they are, because I picked them out for you.
For Experiment 5 (the molecular modeling lab):
In this experiment five different molecular modeling techniques illustrated different techniques for illustrating how atoms bond together and in what shapes. We used ball-and-stick models and MolyMod kits to build two-dimensional and three-dimensional representations of molecules, and to illustrate changes in bonding during simple chemical reactions. Soap bubbles and films demonstrated how systems under stress can find arrangements to minimize those stresses, as atoms in molecules do. All of these shapes were used as templates to build Stuart space-filling models of more complex molecules using the arrangements of atoms we had already seen, around oxygen and carbon atoms. The Stuart models provided no built-in guidance as the MolyMod kits did for arranging the atoms, so our models of hexane and dimethyl ether were too linear. We did not make the common connections between different types of models until writing up this report. If we had to do this lab again, I would bring better drawing tools than a dull pencil and scratch paper, and I would take more time drawing the shapes so they made more sense later.
This is the kind of analysis I'm looking for - more discussion of results and what was learned, a short statement for improving the lab, and less filler. Try this on your Summary for Experiment 6 and let's see what happens.
CHEM: Experiment 6 Data and Notes for the Report
First:
Here is the data sheet with all class data for Experiment 6 - my classes and Mr. V's.
You will need to print out this sheet and attach it to your report. The sheet should be attached so that it does not stick out from inside the pages of your comp book. The easiest way to do this is as follows:
1) Print out the sheet. The file is in Excel 97-2003 format, so everyone should be able to print it. Use Google Docs to open it if you can't. The file is formatted so that the whole sheet, including the individual class averages at the bottom, will print on one sheet.
2) Fold the sheet in half, top to bottom (not side-to-side).
3) Lay the sheet onto the page in the comp book to which you will attach it, with the crease close to the binding and the top/bottom of the sheet along the long outer edge of the page.
4) Tape or staple the bottom edge of the data table along the outer edge of the page. DO NOT staple the top of the sheet as well, or you can't open the table and read it. Secure the whole edge of the sheet to the page with tape or several staples. You don't need twenty staples to do this - it's a piece of paper, not a laceration.
If you have done this correctly, the data table will open across the face of the comp book, and not out onto the table, when you open the table to look at it. I'll show you Tuesday to make sure you understand.
The writeup scheme is as follows:
Heading
Objective
Partner
Procedures and Observations - this may include your data as well, or you can refer to your Data Table. Be sure to include your visual observations of the reactions when appropriate.
Data Table - You need your individual data table from p 39 (recopy it), as well as your full data table of the class results. You can attach the class data table to the page over your own data table, if you like.
Calcs - This is the list of calcs from page 40. Recopy these. Show your work. Watch your sig figs. Be neat.
Graph - Generate a histogram of ALL the class data, from all seven sections. If you choose, you can omit the one outlier from the data, BUT IF YOU DO, you must include an annotation on the graph explaining that there is one more data point off the page, including the value of the data point.
Questions - There are a few questions on p 38, after the descriptions of the calculations on p 40. Answer these here.
Sources of Error
Summary
This is not a short report. Do not leave this until the night before. Work on this along the way.
Write if you have questions.
Here is the data sheet with all class data for Experiment 6 - my classes and Mr. V's.
You will need to print out this sheet and attach it to your report. The sheet should be attached so that it does not stick out from inside the pages of your comp book. The easiest way to do this is as follows:
1) Print out the sheet. The file is in Excel 97-2003 format, so everyone should be able to print it. Use Google Docs to open it if you can't. The file is formatted so that the whole sheet, including the individual class averages at the bottom, will print on one sheet.
2) Fold the sheet in half, top to bottom (not side-to-side).
3) Lay the sheet onto the page in the comp book to which you will attach it, with the crease close to the binding and the top/bottom of the sheet along the long outer edge of the page.
4) Tape or staple the bottom edge of the data table along the outer edge of the page. DO NOT staple the top of the sheet as well, or you can't open the table and read it. Secure the whole edge of the sheet to the page with tape or several staples. You don't need twenty staples to do this - it's a piece of paper, not a laceration.
If you have done this correctly, the data table will open across the face of the comp book, and not out onto the table, when you open the table to look at it. I'll show you Tuesday to make sure you understand.
The writeup scheme is as follows:
Heading
Objective
Partner
Procedures and Observations - this may include your data as well, or you can refer to your Data Table. Be sure to include your visual observations of the reactions when appropriate.
Data Table - You need your individual data table from p 39 (recopy it), as well as your full data table of the class results. You can attach the class data table to the page over your own data table, if you like.
Calcs - This is the list of calcs from page 40. Recopy these. Show your work. Watch your sig figs. Be neat.
Graph - Generate a histogram of ALL the class data, from all seven sections. If you choose, you can omit the one outlier from the data, BUT IF YOU DO, you must include an annotation on the graph explaining that there is one more data point off the page, including the value of the data point.
Questions - There are a few questions on p 38, after the descriptions of the calculations on p 40. Answer these here.
Sources of Error
Summary
This is not a short report. Do not leave this until the night before. Work on this along the way.
Write if you have questions.
Thursday, October 15, 2009
Wednesday, October 14, 2009
CHEM: Day 35 Homework
Here is the homework for all classes, except third period, who have their lab report due tomorrow.
1) ?s - pp 359-360: 128, 141, 142, 159, 161, 165, 167
1) ?s - pp 359-360: 128, 141, 142, 159, 161, 165, 167
Monday, October 12, 2009
CHEM: Day 33 Homework
This week is a little unusual. You will have the PSAT Wednesday morning. Remember to get a good night's sleep and to eat a solid breakfast. Bring a calculator with good batteries and some pencils. Don't count on mooching off your friends.
Since fourth period will have some of their lab chewed up by the exam, I will have to start the reaction for you. Don't get used to it. Hoff it up to the lab when you finish the PSAT and we'll get started.
Homework for tomorrow, if you have class:
1) Read pp 476 - 487
2) ?s - pp 313-315: 96, 97, 133
pp 358-359: 94, 95, 98, 99, 108
For lab:
1) Finish the report for Experiment 5.
2) Read Experiment 6. Be prepared - it's a long one.
That should do it.
Since fourth period will have some of their lab chewed up by the exam, I will have to start the reaction for you. Don't get used to it. Hoff it up to the lab when you finish the PSAT and we'll get started.
Homework for tomorrow, if you have class:
1) Read pp 476 - 487
2) ?s - pp 313-315: 96, 97, 133
pp 358-359: 94, 95, 98, 99, 108
For lab:
1) Finish the report for Experiment 5.
2) Read Experiment 6. Be prepared - it's a long one.
That should do it.
Friday, October 9, 2009
CHEM: Day 32 - Homework
Remember:
You have homework due Monday, and an exam. We'll go over the homework and then you'll take the test. It's a memorization test - you don't need an entire period to agonize over what you don't know.
1)Read pp 348 - 354
2) ?s pp 359 - 360: 131 - 136
M p 72: 21 - 25
3) Stuuuuuudy!
4) Lab report for Experiment 5 due on lab day. Leave some time to spend on your drawings. You will be graded on them.
Have fun with your ions, eh?
You have homework due Monday, and an exam. We'll go over the homework and then you'll take the test. It's a memorization test - you don't need an entire period to agonize over what you don't know.
1)Read pp 348 - 354
2) ?s pp 359 - 360: 131 - 136
M p 72: 21 - 25
3) Stuuuuuudy!
4) Lab report for Experiment 5 due on lab day. Leave some time to spend on your drawings. You will be graded on them.
Have fun with your ions, eh?
Thursday, October 8, 2009
CHEM: Day 31 Homework
Wednesday is such a weird day. I need to figure out what to do with the blog on Wednesday, since nothing new gets posted.
Due Friday:
1) ?s - M p 52: 15cd, 16cd, 17cd
M p 65: 18 - 20
M p 66: 28 - 30
M p 67: 38 - 40
YouTube is always an option ...
Due Friday:
1) ?s - M p 52: 15cd, 16cd, 17cd
M p 65: 18 - 20
M p 66: 28 - 30
M p 67: 38 - 40
YouTube is always an option ...
Tuesday, October 6, 2009
CHEM: Day 29 Homework
Don't forget to link your observed product with the predicted product for each of your chemical equations in the Experiment 7 report. Tell me what you think you saw, and which compound you believe you observed.
Homework due Wednesday for Period 1 is listed in yesterday's homework post.
For Periods 1, 4 and 8, due Thursday/Period 3, due tomorrow:
1) Read pp 336 - 345
2) ?s - M p 52: 15ab, 16ab, 17ab
M p 65: 15 - 17
M p 66: 25 - 27
M p 67: 35 - 37
That and your lab report should keep you busy.
Homework due Wednesday for Period 1 is listed in yesterday's homework post.
For Periods 1, 4 and 8, due Thursday/Period 3, due tomorrow:
1) Read pp 336 - 345
2) ?s - M p 52: 15ab, 16ab, 17ab
M p 65: 15 - 17
M p 66: 25 - 27
M p 67: 35 - 37
That and your lab report should keep you busy.
Monday, October 5, 2009
CHEM: Day 28 Homework
Finally, the main course! No more review for you!
Homework for your next class:
1) Read pp 335-340; read M pp 49-52
2) ?s - Mp 45: 3-6; M p 50: 13, 14
Lab report for Experiment 7 will be due for all classes on Thursday, October 6.
Homework for your next class:
1) Read pp 335-340; read M pp 49-52
2) ?s - Mp 45: 3-6; M p 50: 13, 14
Lab report for Experiment 7 will be due for all classes on Thursday, October 6.
Saturday, October 3, 2009
CHEM: Day 27 - Homework
All you need to do for Monday is read pp 320 - 335. Pay attention to the reading. It'll be better for you on Monday if you have some idea of what's gong on.
Make sure you start bringing your calculators from now on. Get some new batteries too, if you need them. There will be math most days for the next two months.
I don't have calculators to loan out, curing class of for tests. Secure your secondary brains, please. :)
Make sure you start bringing your calculators from now on. Get some new batteries too, if you need them. There will be math most days for the next two months.
I don't have calculators to loan out, curing class of for tests. Secure your secondary brains, please. :)
Thursday, October 1, 2009
CHEM: Day 26 Homework
Some problems for you tonight.
?s - pp 312-314: 80, 87, 88, 110, 112, 113
That's it.
?s - pp 312-314: 80, 87, 88, 110, 112, 113
That's it.
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