Experimental Design Proposal

Before you begin to design your experiment, a few things to remember.  1)  There are a bunch of videos in the above pages to reference, regarding antioxidants and their function. 2) You need to come up with questions to clarify the UC-Davis procedure handed out yesterday.  3) You need to consider how you will present this information (i.e. poster, video, menu, pamphlet, presentation, blog, etc.)

Experimental Design Proposal must contain the following:

Names of people in your group (list, maximum of 3)

Short paragraph discussing the food you chose and why (3 or 4 sentences) - could be type of food (i.e. carrots) or a category of food (i.e. fruit).  You should site any sources you use (simple web links are good enough).

List of constants and variables - as discussed yesterday, you should limit your variables to ONE.  For example, if picking carrots, you variable could be cooking style (i.e. raw, boiled, sauteed).  You would not want to look at both cooking style and color of carrots (they are not all orange).  If you are inspired by color of carrots, then you would eliminate cooking style and just use RAW for all of them.  

Provide questions concerning the procedure using Folin's Reagent.


DUE TOMORROW!

Ionic Compound Formula and Naming Activity

Here is an electronic copy of today's activity - thanks to the Paulding County School District

Atoms vs. Ions

Here are some video tutorials that assist with today's work on atoms vs ions.

https://www.youtube.com/watch?v=CV53wfl-oV8

https://www.youtube.com/watch?v=gsvR4AZGRSk

Molarity Tutorial and Practice Problems

Thanks again to the people at "Sophia"

http://www.sophia.org/tutorials/molarity

http://www.sophia.org/tutorials/molarity-calculations

Mole Conversion Practice Problems

The following link from the "Sophia" websites provide a somewhat rough, but effective tutorial on solving mole conversion problems.  There is an online quiz also to the right of the videos that allow you to check your understanding.  Try them please.

http://www.sophia.org/tutorials/mole-as-a-quantity

http://www.sophia.org/tutorials/molar-mass-of-an-element

http://www.sophia.org/tutorials/molar-mass-of-a-compound

http://www.sophia.org/tutorials/converting-from-grams-to-moles

http://www.sophia.org/tutorials/converting-from-moles-to-grams--2

http://www.sophia.org/tutorials/converting-from-particles-to-moles

http://www.sophia.org/tutorials/converting-from-moles-to-particles

Mole and Molarity - How do we represent "concentration?"

We will continue to look at concentration next week and begin to be more specific with how chemists view the ratio of "stuff to water."  To get ready for the lessons, please review the following videos that describe the mole and molarity.

What is a mole?

Formula Weight, atomic weight, molecular weight

How else do we represent the Mole in Chemistry?

Calculating the concentration in Molarity PART 1

Calculating the concentration in Molarity PART 2

Serial Dilution Reference Material

Awesome interactive animation that demonstrates serial dilution

"Homework" For Next Class

You should have a digital representation (word document, powerpoint/prezi, etc.) that communicates the following associated with your experiment determining the "best" glassware to measure with:

• Goal - state the goal of the experiment.
• Materials/Equipment list - what did you use to perform this experiment (i.e graduated cylinder, pipette, etc.).  Pictures would be helpful, but not necessary.  You should be specific (i.e. instead of graduated cylinder, you would write 100 mL Graduated Cylinder).
• Procedure - Step-by-step list of instructions that explains the steps necessary to collect the data for this experiment.
• Data - Organize your data in a table or tables.  The key here is organize.
• Calculations/Results - You need to perform the following calculations with each data set (i.e. for each piece of glassware) 
• Average Volume of Water Measured
• Percent Error (using the value from the glassware as the accepted value; the value from the scale, in mL, is the experimental value)
• Mean Absolute Deviation (MAD)

You must be able to show me ONE example of each calculation in your write-up, but you still need to calculate the above for each data set.  You will list the ANSWERS TO ALL CALCULATIONS in a RESULTS table.  Results are answers that are calculated.  So you should have a table that provides the Avg Volume, %Error, & MAD for each piece of glassware.

*note - I have created a new page at the top of the blog titled "screenshots" to highlight things that happened during class.  You can find the notes from the board here.

This is what you need for Monday.  Come see me for any clarification.  

Reflection for Group Work on the Geo-exchange Activity

Please download/print and fill out the document from the link below:

You will be reflecting on the Geo-exchanger Design Project.

http://www.dailyteachingtools.com/images/500SelfEval.jpg

I will be experimenting with other forms that are similar to this document, let's give this one a try.

It is due first thing, next class.

Email me with any questions.

Marx

HOMEWORK DUE 9/5/2014

Please go up to the Antioxidant Project page, click on it.
Then read the articles titled:
Men's Health article on the basics/myths of Antioxidants
Penn State news article describing function of antioxidants 
Also watch the video titled:
Video that describes basics of Antioxidants role in protecting cells

Be prepared to discuss the articles and ask questions to clear up any confusing information.  I realize you know little about what is being communicated through these documents....that is where the teaching/learning comes in.

See you tomorrow....

HOMEWORK FOR BIOCHEMISTRY

Email me with the word BIOCHEMISTRY spelled backwards......

Enjoy the extended weekend.  Fantastic first day.

Introduction to Design, Engineering and Inquiry: Geo-exchanger Design

Two hours is a long first day.  Might as well make something!

Geo-exchanger Design

Welcome Biochemistry

Welcome to the new integrated-science course offered for 10th graders at WT - Biochemistry.  This class will be a project-based class that focuses on the relationship between chemistry and biology. The course consists of long-term projects that highlight hands-on activities and allows students to creatively present their learning in various forms of media. 

Stay tuned as this site continues to be built.....