Academics

Perogie Palaces and Lactose Free Cupcakes

The grade 12 food and nutrition sciences class takes a look at the many aspects of food and nutrition. Our current unit “Self and Others” takes a look at the personal and social reasons we eat.  In this unit, students are expected to plan and prepare foods based on various criteria.

For the first menu, students had to plan a menu taking into consideration economic, geographic, and seasonal factors.  Students were split into six groups of two and asked to plan a menu with the following criteria:

1. Time (no more than 75 minutes to prepare, cook, clean-up, and eat)
2. Cost (between $50-$60)
3. Seasonal & Geographic (use fruits and/or vegetables that are available in Ontario during October or November

Once students found a recipe that fit the above criteria they made a presentation to their classmates outlining all the information as well as preparing a shopping list for all the ingredients. The class voted on making a dish called “Perogie Palace” as well as a dessert of apples, spices and vanilla ice cream.

The second menu had students planning a menu that had to meet a dietary need, and decided on making lactose free muffins. The ingredients for both menus were purchased at Loblaws during two separate class trips. Both menus were prepared and received very well by Academy staff and students, and were quite delicious. Stay tuned for our next cooking adventure update.

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Breaking Down a Breakdown Reaction

In grade 10 science, the chemistry unit is primarily focused on chemical reactions.  Simply discussing the various types of chemical reactions and what they entail can be for many students a bit abstract. Luckily for chemistry, there are a lot of “cool” demonstrations (or demos as we call them in the biz) that can be utilized to visually represent the power, speed and awesomeness that chemical reactions can have.  One of the types of chemical reactions students learn about in grade 10 chemistry is a decomposition reaction in which a single reactant molecule breaks down into simpler constituents (parts).

2 H₂O_{2 (l)} à  2 H₂O _(l) + 0_{2 (g)}

On Monday October 15, our science class witnessed a decomposition reaction.  In particular this decomposition reaction was one used on the hit comedy series, The Big Bang Theory, and so aside from its “cool” factor, it also had pop culture factor and something the students could relate to.  The reaction is essentially the breakdown (decomposition) of hydrogen peroxide (H₂O₂) into water (H₂O) and oxygen (O₂). Hydrogen peroxide is a liquid substance that can be found in drug stores and is used on cuts.  The drug store variety of hydrogen peroxides, are only 3%.  The hydrogen peroxide we used for our demonstration was 6 and 30 percent (to make the outcome more dramatic).

To make the reaction go really fast we mixed yeast in warm water and added it to the hydrogen peroxide (the yeast speeding up the reaction significantly).  Added to the hydrogen peroxide before hand was food colouring (for cool effect), and ordinary dish soap.  The oxygen that is released during the decomposition is caught by the dish soap bubbles which causes the liquid to expand as it does.  The outcome is a fun and “cool” demonstration of a decomposition reaction, which is a lot better than simply describing its mechanics.

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