Students were ISAT testing this week and did not have Chemistry. Next week we'll start on Acids and Bases and our final titration summative. This should be a great way to end the school year!
Students were ISAT testing this week and did not have chemistry class.
A quick reminder that students will be taking the State's Chemistry EOC on May 4th. We have covered nearly all the topics, but these next couple of weeks are critical to getting in the last of the information required for this examination. We've been working on balancing equations and predicting products, there will be a summative over this on Monday. Wednesday and the following week will be spent covering the concept of stoichiometry, which is the predicting of how much product we can produce with a given amount of reactants. Stay diligent!!!
Daily Presentation Slides
PhET Chemical Equation Balancer (w/ worksheet)
Predicting and Balancing Review (w/ answer key)
Crash Course: Stoichiometry
Khan Academy: Stoichiometry
Happy April! The weather is turning warmer and things are heating up as we approach the Chemistry ISAT (May 4th). We've started balancing equations and predicting the products of chemical reactions. We'll be starting some stoichiometry soon which will require some basic algebra skills. Be sure to come in and get a little bonus help during office hours if you feel yourself begin to struggle. The current material is approachable by all students, but may require a little extra practice or clarification. Take the initiative if you need either!
Happy Spring Break!
This week we wrapped up looking at intermolecular forces by studying evaporative cooling in different liquids. It's amazing how acetone (aka fingernail polish remover) can cool a thermometer down to nearly freezing. Additionally, evaporative cooling is part of the process that scientists use to approach absolute zero.
Daily Presentation Slides
Intermolecular Forces Information
Quest for Absolute Zero Video
How a Swamp Cooler Works
5-Gallon Bucket Swamp Cooler
Intermolecular Forces Magic Tricks
Hello! Lots of learning this week as we began to look at how molecules interact with each other. Monday was spent learning about polarity and introduced the term electronegativity, Wednesday we looked at how polarity and shape affects how molecules interact. Check out the resources below for more information:
Whoops! Almost forgot to do my blog post this week, I know you all were so concerned.
We continued to explore how the shapes of molecules affects their properties. On Monday we took a look at fumeric acid and maleic acid. They are isomers of each other, meaning they have the same molecular formula but different structures. Fumeric acid is the trans- form and maleic acid is the cis-form. Don't remember what that means, better look it up! Anyways, this leads to the two molecules having different properties, such as their solubility and reactivity. It was truly a fascinating dive into the world of molecules... kind of.
Wednesday we did a series of miniature labs to study the difference between oil and water. The major outcome of that exploration was to see that water is attracted to a charge while oil isn't. Why is this? Water is polar! Oil is non-polar! But why??? Well, a lot of it has to do with their shapes and the types of atoms the molecules are made of. We'll get into that more on Monday when we read about polar bears and penguins.
Greetings. This week we learned how to represent valence electrons in covalent compounds using dots! We also learned that molecules arrange themselves in 3-dimensions due to the repulsion of electron pairs. We learned the names of these shapes as well. It was grand!
Daily Presentation Slides
Connect the Dots Activity
Connect the Dots Activity Answer Key
Drawing Molecules in 3D Activity
Molecules in 3D Reading
PhET Build a Molecule Simulation
World of Molecules Virtual 3D Molecules
New York University's Library of 3D Molecular Structures
Organic Functional Groups
We only had one class this week due to the Monday holiday. During that class we studied organic functional groups and drawing molecules in two dimensions using the HONC 1234 Rule.
Don't forget, if you want reassess our last assessment you need to do so before March 6th. This is more than two weeks away. I would recommend setting up a time to come in and get some additional help as well as reviewing the past slide presentations (which contain LOTS of practice and answer keys) along with the study guide. You need to have the study guide done before you can reassess.
Monday we took a summative over naming ionic compounds and bonding types. That should be graded and in Skyward by the weekend. So far things are not too impressive given how much practice I offered, you might want to start preparing to reassess now by looking at the study guide and all the practice contained in the previous presentation slides. Reassessments will start next Wednesday and run for two weeks.
After our assessment we read the first chapter out of the book Napoleon's Buttons. It's a great read and I recommend it to anyone who has an interest in science or world history or both.
Today we started to look at molecules and how they are related to our sense of smell. We saw that there was some relationship between molecular formula and the type of smell a substance has. There are a few good links to olfactory facts below. Next week we'll start drawing these molecules in two-dimensions and learning about what makes each different. It's pretty amazing what one little difference between two molecules makes!
Other Great Info
Napoleons Buttons at the Boise Public Library
Types of Smell Disorders
Utilizing the Sense of Smell in Children With Deaf-Blindness