Discovery Express
  • Welcome!
  • Blog
  • Ask Dr. E!
  • Check out our store!
  • 9 Apples Math Game
  • Your questions answered!
  • Events and Announcements
  • About/Contact

Cranberry Science for Thanksgiving!

11/14/2016

0 Comments

 
Author: Maddie Van Beek

​Thanksgiving is coming up! One of the most popular Thanksgiving staples are cranberries. Cranberries are small, red berries that grow on a shrub. They’re usually sweetened into a sauce or jam, often for Christmas or Thanksgiving.
Picture
At the holidays, you might see whole cranberries, jellied cranberries, or cranberry sauce. How can we use cranberries for science? Let’s find out!

Cranberry Reactions

Watch cranberry juice react with baking soda and lemon juice!

There are two reasons that cranberries are going to react in our experiment today. One, cranberries are acidic. As you might know, when acids and bases meet, a chemical reaction takes place. You’ve seen this happen when you mix baking soda (a base) and vinegar (an acid). What happens? Lots of fizzing and bubbles! Remember, those bubbles are releasing carbon dioxide gas as a product of the reaction. The second reason that you’ll see a special reaction from cranberries is because of their pigment, anthocyanin. Anthocyanin is what makes cranberries their deep red color. When the acidity changes in the juice, anthocyanin reacts by changing color! Today, you’re going to mix cranberry juice with baking soda and lemon juice to see how these ingredients react with each other.
Picture
YOU WILL NEED:
* Cranberry sauce, juice, or whole cranberries
* Baking soda
* Lemon juice
* Glass or container
* Measuring spoons


1. If you’re using cranberry sauce, make sure it’s thawed out and in liquid form. If you’re using whole cranberries, mash them up and add a little hot water to get a good amount of juice.
2. Pour the cranberry juice into a glass. You should have at least one cup of juice.
3. Predict what will happen when you add a spoonful of baking soda to the glass of cranberry juice.
4. Add the baking soda and observe what happens. Record your observations.
5. Predict what will happen when you add lemon juice to the cranberry juice.
6. Add two tablespoons of lemon juice and observe the reaction! What happened?
7. Record your findings.
8. Extension: Add different amounts of baking soda or lemon juice. Does that make a difference? Can you get the color to change even more? What happens if you add baking soda and lemon juice at the same time?


Cranberry Building

In this activity, you will use cranberries to build the tallest structure possible!


YOU WILL NEED:
* Fresh, whole cranberries
* Toothpicks


Here’s what to do!
1. Unwrap your cranberries.
2. Connect two cranberries with a toothpick.
3. Continue building and connecting cranberries to build whatever structure you want. See how tall you can make your building before it tips over!
4. Test out the strength of your structure by setting an object on top. See how much your structure will hold!
5. Challenge: Try rationing yourself to only 20 toothpicks. Using those 20 toothpicks, what shape will create the strongest structure? Try a few different structures and test which one is the strongest!


Cranberry Sauce Recipe
Picture
Here’s a great cranberry sauce recipe that you can use for the holidays! Impress your family by helping out with this traditional treat!


YOU WILL NEED:
* 12 ounce bag of cranberries
* Sugar
* Orange zest
* Pepper
* Water
* Salt
* Pan
* Stove

Here's what to do!
1. Empty your cranberries into a saucepan.
2. Transfer 1/2 cup of the cranberries into a small bowl. 
3. Add 1 cup sugar, 1 strip orange zest, and 2 tablespoons water to the saucepan. 
4. Stir over low heat until the cranberries soften and the sugar dissolves.
5. Increase to medium heat cook until cranberries burst. 
6. Reduce to low heat and add the 1/2 cup of reserved cranberries. 
7. Add sugar, salt, and pepper to taste. 
8. Let cool to room temperature before serving.  

Recipe from: 
http://www.foodnetwork.com/recipes/food-network-kitchens/perfect-cranberry-sauce-recipe.html

Image credits, in order of appearance:
Weller, K., 2005. Cranberry bog. Image uploaded from Wikimedia Commons on 11/13/2016. 
https://upload.wikimedia.org/wikipedia/commons/thumb/3/3a/Cranberry_bog.jpg/1024px-Cranberry_bog.jpg
File in the Public Domain. 

Cjboffoli, 2010. Cranberries20101210. Image uploaded from Wikimedia Commons on 11/13/2016. 
https://upload.wikimedia.org/wikipedia/commons/thumb/4/45/Cranberries20101210.jpg/1024px-Cranberries20101210.jpg ​File used in accordance with the Creative Commons Attribution-Share Alike 3.0 Unported license. No changes were made.

Veganbaking.net, 2008. Cranberry sauce. Image uploaded from Wikimedia Commons on 11/13/2016. 
https://upload.wikimedia.org/wikipedia/commons/thumb/0/07/Cranberry_Sauce_%283617909597%29.jpg/800px-Cranberry_Sauce_%283617909597%29.jpg 
File used in accordance with the Creative Commons Attribution 2.0 Generic license. No changes were made.

0 Comments

Your comment will be posted after it is approved.


Leave a Reply.

    Follow us on Pinterest!
    Picture
    Check out our new game for math education, grades 1-7!

    Archives

    February 2019
    January 2019
    December 2018
    November 2018
    October 2018
    September 2018
    August 2018
    July 2018
    June 2018
    May 2018
    April 2018
    March 2018
    February 2018
    January 2018
    December 2017
    November 2017
    October 2017
    September 2017
    August 2017
    July 2017
    June 2017
    May 2017
    April 2017
    March 2017
    February 2017
    January 2017
    December 2016
    November 2016
    October 2016
    September 2016
    August 2016
    July 2016
    June 2016
    May 2016
    April 2016
    March 2016
    February 2016
    January 2016
    December 2015
    November 2015
    October 2015
    September 2015
    August 2015
    July 2015
    June 2015
    May 2015
    April 2015
    March 2015
    February 2015
    January 2015
    November 2014
    October 2014
    September 2014
    August 2014
    July 2014
    June 2014
    May 2014
    April 2014
    March 2014
    February 2014
    January 2014

      Tell us what interests you most, and we'll send you a free PDF of a lesson in that subject!

    Submit

    Categories

    All
    Age 10 12
    Age 12 14
    Age 14 16
    Age 16+
    Age 8 10
    Anatomy/Physiology
    Biology
    Chemistry
    Engineering
    Food Science
    Geology/Earth Science
    Health Science
    Math
    Microbiology
    Physics
    Plant Science
    Psychology
    Weather Science

Proudly powered by Weebly