Monthly Archives: October 2014

Hon Chemistry 10-31-14 Friday’s In Class Assignment

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To My Beautiful Honors Chemistry Students: Today I’m giving you a head start on a virtual lab that you are going to be finishing at home. It is the vLAB: Determining an Empirical Formula. You will also do Extension 1.

Be sure and use the lab sheets here on the website and NOT sheets on the textbook site that come with the virtual lab! There are headphones for you to use  if you don’t have your own ear buds.

Be sure and save your work! You won’t be able to save the actual lab, just your lab report. You could save it to your Shared Student Folder at school and email it to yourself, or you could save it to your Google Drive folder as a Word Doc and then you’d be able to access it from home. When you are finished, you will save this lab as a PDF to your Google Drive Turn In Assignment folder and Turnitin.com. Due date is Saturday midnight. This means you have TWO labs due by Saturday midnight – the thLAB on moles and this vLAB.

Have a great day!
🙂

Physics 10-31-14 Friction Problems & Friction on Inclines

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PHYSICS: Who knew snow skiing could be so complicated! Well friction problems on an incline anyway. Here’s the problem review from the homework and then the beginning of our discussion of friction problems on an incline.

Back to the problems – remember, drawing the diagram is super, super important. Label all the forces and apply the concepts you know about net forces and resultant forces – let it tell you a story. And let’s crank it up a notch on Tuesday. I miss you guys!!

PHYSICS 11-1-13 Friction Problems & Friction on an Incline from Tammy Skinner on Vimeo.

flickr photo by t i g

Chemistry 10-31-14 Friday’s In Class Assignment

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To My Beautiful Chemistry Students: I miss you today! Here is the assignment for Friday:

A great way to practice writing and naming chemical formulas correctly is to go to sciencegeek.net and practice the Chemistry Review Activities. I want you to practice four sections in Unit 2 and Unit 3 will be very helpful. Click on any of the sections to go the the site.

Use paper to do your work and figure out formulas, add up the masses, etc. You are REQUIRED to go through these activities; however, you don’t have to turn anything in unless Mrs. Cloud decides that it would be best for you to do so. I do want you to practice each section over and over until you can go through each one without making any mistakes!  If you don’t finish today in class, continue to practice these for this weekend’s homework.

Be careful not to get distracted once you are begin work on the laptops. You are to work ONLY on this assignment until the bell rings. Have a great day!
🙂

Hon Chemistry 10-30-14 Polymers

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HON CHEMISTRY: Oh, my word! We finally finished the chapter! Have you had a chance to check out the study suggestion sheet on Edline?

Also amazing – did you realize molecules could be that large? And so many of them! But don’t you think polymers are cool?

Some items for contemplation: why are certain plastics recyclable and others not…and what about dishwasher and microwave safe?

Help session tomorrow morning, 7:15ish A.M.
🙂

HON CHEMISTRY 10-30-13 Polymers from Tammy Skinner on Vimeo.

Image source: http://www.packtech.ca/pb/images/img32161428fffbe41e07.jpg

Physics 10-30-14 Friction & Normal Force and Newton’s Law Project

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PHYSICS: I miss you already! Here’s the vodcast you watched today. So about the Newton’s laws project – the first part of this vodcast covers that. Understand it? I can’t wait to see what you are going to come up with! One change from the vodcast. Turn the project in to both your Google Drive Turn It In folder AND Turnitin.com. It should be a two page PDF – the first page will be your photo, the second page will be your explanation.

Now then, why don’t things that are moving just keep moving? This vodcast has the intro lecture on friction.

Remember a few key things. Net forces produce acceleration. You can find Ff a couple of different ways – it’ll be part of a net force equation and can be found from the coefficient of friction equation. If and ONLY if your object is moving at a constant velocity, Ff will equal Fa. Fn is only sometimes equal to Fw. If your object is pulled at any angle (or pushed), Fn will be a part of Fnet in the vertical direction.

Whew!
🙂

Physics 10-31-13 Friction & Normal Force from Tammy Skinner on Vimeo.

flickr photo by kbaird

Chemistry 10-30-14 Formula Mass

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CHEMISTRY: Now that you’ve learned to write and name chemical formulas, it time to learn to use chemical formulas as a tool.

Great job today with formula mass! Be sure and show your work – and don’t forget to include the units!!

CHEMISTRY 10-30-14 Formula Mass from Tammy Skinner on Vimeo.

Hon Chemistry 10-29-14 Molecular Formulas

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HON CHEMISTRY: I was really impressed today with the progress you’ve made on mastering percent composition and empirical formulas! Now it’s time to move on to molecular formulas!

Remember what molecular formulas are – just a multiple of the empirical formula. Keep that concept in mind, and you’ll have no problem remembering to divide the molecular formula mass by the empirical formula mass to find X! Easy peasy!

Are you starting to catch on to the steps? It will be good for you to memorize them, but would it not be just tons better to understand why you need each step – backwards and forwards, so then you wouldn’t need to memorize them at all!

Need some extra practice? Help Session next Tuesday morning, 7:15ish A.M.

HON CHEMISTRY 10-29-14 Molecular Formulas from Tammy Skinner on Vimeo.

flickr photo by Darwin Bell

Physics 10-29-14 Newton’s 2nd & 3rd Laws

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PHYSICS: Wow! What a crazy few days!! Here is the lesson on Newton’s 2nd & 3rd laws. You will need to watch this one to get the rest of the notes on these laws. The beginning has a bit of review, so fast forward if you want to where we left off in class today.

And, for your viewing pleasure, enlightenment and overall edification – Julius Sumner Miller on Newton’s Second and Third Laws. Good stuff! you’ll find them extremely helpful with the conceptual part of the test. I strongly encourage you to watch them!

So an object at rest can be at equilibrium, but what about an object that is moving? And how does equilibrium relate to Newton’s first law? Or Newton’s second law? And what if you don’t have balanced forces. Now remind me, net forces produce what?

PHYSICS 10-30-13 Newton’s 2nd & 3rd Laws from Tammy Skinner on Vimeo.

Photo: Joe Armao

Chemistry 10-28-14 Chemical Formula Worksheet 1

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CHEMISTRY: Did today help? I think it did!!

Here’s the work we did going on the formulas and name of compounds on Chemical Formula Worksheet 1. Keep working on it! The knots are all going to come unraveled and you are going to master this!!

Help session this Thursday morning, 7:15ish A.M.

CHEMISTRY 10-28-14 Chemical Formula Worksheet 1 from Tammy Skinner on Vimeo.

flickr photo by Elizabeth The Queen Of All Things

Hon Chemistry 10-28-14 Percent Composition & Empirical Formulas

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HON CHEMISTRY: Awesome job today!! You conquered percent composition and then turned it around to find empirical formulas.e

Be sure and practice – especially empirical formulas! If you don’t it’ll get all turned around and you’ll end up leaving off an important step. The hardest part is that it’s not a set formula for you to plug and play, but if you’ll keep in mind that you’re really just looking for subscripts which are just moles, you’ll be able to think it through. Percent to mass, mass to moles, moles to smallest whole number ratio. Easy peasy!

I wonder what the percent composition of bubble gum is?

HON CHEMISTRY 10-28-14 Percent Composition & Empirical Formulas from Tammy Skinner on Vimeo.

flickr photo by Τϊζζ¥