Exam Fuel

Come by our classroom Wednesday morning before the exam for a cup of hot chocolate or cider and breakfast treats!(7:15 – 8:20 A.M.)

You’ll need to bring your exam review packet to the classroom BEFORE your exam, so while you’re at it, grab some exam fuel!

Also, don’t forget the CHEMISTRY help session Wednesday morning, 7:15 A.M. Come for exam fuel for the mind and body!!


Photo by Mink Mingle on Unsplash

Chemistry 12-6-17 Chapter 7 Test Overview

CHEMISTRY: God bless you as you study! Here’s our overview of the test from today. Also, did you find the Chapter 7 Stuff to Know sheet? Be sure and use it as a road map for your studying. I know it seems like a lot, but you can do it!

First priority – make sure that you have memorized EVERYTHING. Then, practice!!! Go to sciencegeek.net and make sure you can write and name chemical formulas. Practice, practice, practice!!! Then start practicing the different kinds of problems – do at least three of each one of them. And also try those on sciencegeek.net. That’s always some good practice. And don’t forget about polymers!

I’ll be praying for you! You can do it!!


flickr photo by libraryman

Chemistry 12-1-17 Polymers

CHEMISTRY: We finally finished the chapter! Did you realize molecules could be that large? And so many of them. But don’t you think polymers are cool? Here’s the lecture for Friday. Don’t forget the Polymer Worksheet! Put the answers on sheets of notebook paper.

BEGIN WATCHING THIS VODCAST AT 6::00 MINUTES.

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

Chemistry 11-29-16 Polymers from Tammy Skinner on Vimeo.

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

Chemistry 11-30-17 Molecular Formulas

CHEMISTRY: Hey guys! Awesome job with empirical formulas, and now you’ve conquered writing molecular formulas! Here’s the lecture for Thursday. It’s just like writing empirical formulas but with a twist at the end!

By the way, if you’d like some practice or if you have questions, holler and we can have a help session!

We are getting very close to the end of the chapter! Have you started preparing for the test? It will be over ALL of chapter – plus the small bit from chapter 3. Be sure and checked out the Stuff to Know sheet for all of chapter 7 on Edline!

Chemistry 11-12-15 Molecular Formulas from Tammy Skinner on Vimeo.

flickr photo by Sebastian Mary

Chemistry 11-29-17 Empirical Formulas

CHEMISTRY: So, would you like to be Greg on CSI? Here’s the lecture for Wednesday. Great start on empirical formulas today!

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.

Tomorrow we’ll talk about a little step you get to add at the end. 🙂

CHEMISTRY 11-11-15 Empirical Formulas from Tammy Skinner on Vimeo.

Image source www.dnr.mo.gov/env/esp/images/prettytesttubes.jpg

Chemistry 11-28-17 Percent Composition

CHEMISTRY: Great job today… a little bit different lab procedure, huh?!! This lab is answered only on notebook paper – be careful to show correct data and calculations!

BTW – I think you’ll find that percent composition problems are really easy to catch on to. Make sure, though, you can write chemical formulas (I won’t give them to you!) and that you’ve memorized the formulas for acids and those chemical names for common substances so that you’ll have something to find the percent composition of!


flickr photo by Τϊζζ¥

Chemistry 11-27-17 Mass-Moles-Molecules Review

CHEMISTRY: So how many molecules are in one drop of water? Good job figuring that out today!

You’ve got some great tools to use – be sure you know what to use and when to use it. Best way to learn that? Practice, practice, practice!!


Photo by zhang kaiyv on Unsplash

Chemistry 11-16-17 Formula Mass & Molar Mass & Molecules

CHEMISTRY: So how many water molecules do you think are in this drop? Now you have enough information to find out. Can you figure it?

Here’s the lecture from Thursday on formula mass and molar mass, and then using molar mass and Avogadro’s number as a conversion factor. You’ve got a couple of great tools – so now think through the problems and go forth and conquer!! Be sure and practice them so you don’t forget!

Chemistry 11-14-16 Formula Mass & Molar Mass & Molecules from Tammy Skinner on Vimeo.

flickr photo by ecstaticist

Chemistry 11-14 and 15-17 Moles, Mass, Atoms & Avogadro

CHEMISTRY: So… how big a bucket do you think we’d need to hold a mole of frogs? 🙂

Nope, not the furry brown creature that burrows underground, it’s a whole different thing! Here’s the lecture from Wednesday on moles, mass, and Avogadro’s number. Below that is our look at a couple of the homework problems with moles. I still say he has a cool name…


flickr photo by Thomas Hawk