Praxis Science Outreach Science Smarts Column: Bon Appétit

June 22, 2024

The latest Praxis ‘Science Smarts’ column in the Medicine Hat News. The article may also be found in the Medicine Hat News (paper) or via digital copy at https://medicinehatnews.com/life/local-life/2024/06/22/science-smarts-bon-appetit or via PressReader at https://pressreader.com/article/281711209827908.

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I can hardly believe we are approaching the end of the school year already! Where does the time go these days?

I do not know about you, but as the school year draws to an end, I find myself a bit more tired on the weekend and perhaps sleep in a little bit. The fun part about sleeping in is we always have a wonderful family breakfast those days. I thought I would share the science behind one of my family’s favourite breakfast foods; a little pancake science today.

Let’s get started!

*Remember to ask an adult before doing this experiment.

Materials

• Frying pan
• Stove
• Measuring cups
• Measuring spoons
• Eggs
• Milk
• Flour
• Baking powder
• Sugar
• Vanilla
• Salt
• Mixing bowls

Procedure

1. Measure 300 mL (1¼ cups) milk and pour it into the bowl. Add two eggs, 5 mL (one teaspoon) of vanilla, and 45 mL (three tablespoons) of oil to a bowl.
2. Mix this well.
3. In a separate bowl, measure and add 350 mL (1½ cups) of flour, 2.5 mL (1/2 teaspoon of salt), 30 mL (two tablespoons) of sugar, 15 mL (three teaspoons) of baking powder.
4. Stir well.
5. Add the wet to the dry and stir JUST until most of the lumps are gone.
6. Have an adult help you turn on the stove and cook your pancakes.
7. NOW make another batch EXACTLY the same BUT leave out the BAKING POWDER.
8. Compare your pancakes.
9. What do you notice?

What is going on?

Of course, our pancakes will vary in size, what you will be looking for here is how fluffy or how much did your pancake grow.

When you used the baking powder in the experiment, you used what we call a leavening agent which creates a chemical reaction in this mixture. The baking powder will release bubbles of carbon dioxide when it reacts with the liquids in this experiment. As these bubbles form, they grow and grow and grow creating a light a fluffy pancake! The pancake WITHOUT baking powder will be much flatter.

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Patty Rooks, Senior Scientific Consultant – PRAXIS: Connecting Science and The Community of SE Alberta

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Praxis Science Outreach still continues to do science outreach in southeastern Alberta but because of financial constraints, we are making some program changes.

See https://praxisscienceconnection.wordpress.com/2023/02/09/praxis-science-outreach-society-program-changes/ for the details regarding our programs.

Webpage: https://www.praxismedhat.com/

Twitter (X): https://twitter.com/PraxisMedHat

Facebook: https://www.facebook.com/PraxisMedHat

We also have another blog for events, activities and services that we offer.

One of our most recent posts is “In Recognition of the ASTech Awards 35 Year Anniversary – The Praxis Science Outreach 1995 Award”

In Recognition of the ASTech Awards 35 Year Anniversary (Week 7) – The Praxis Science Outreach 1995 Award

If you wish to support us (Praxis Science Outreach is a registered charity) please consider doing so at:

https://www.canadahelps.org/en/charities/praxis-society-southeastern-alberta-sciencing-and-teching-center/?mprompt=1.

We are located at #12 826 11 Street S. E., Medicine Hat, Alberta, T1A 1T7

Phone: 403.527.5365 or email: praxis@praxismh.ca

G.Mc (Praxis Board Member)