Science Nine Moonshine

Gr.9's distilling wine to produce ethanol
Gr.9's distilling wine to produce ethanol

Mr. Wright’s Science 9 class have been distilling their very own moonshine in the Sr. Science wing!

The experiment started before the Winter Break. The students first started with making homemade apple wine: apples with yeast, and sugar. This started the fermentation process to produce alcohol. But to create spirits other than wine, such as vodka or brandy, one more step is required – distillation.

Today (Jan 18), they completed the rest of the experiment… distilling the alcohol from the wine to produce brandy. They heated the wine, boiling the alcohol into a vapor, and then collecting that vapor into a test tube and condensing it back into a liquid…voilĂ : alcohol!

The experiment is a fun way of studying some interesting chemistry; an enzyme catalysed reaction of sugar into ethanol. The class considered the conditions necessary for fermentation, one of the oldest chemical reactions known to man.

Finally the distillation illustrated how substances can be separated, or purified, based on their differing boiling points. The final ‘brandy’ was flammable and in many developing countries alcohol is now used as a fuel in cars.

Something’s ‘Fishy’ in the Science Room

Salmon Egg Delivery
Ms. O'Connor deposits the salmon eggs in to the Jr. School's special cooling tank

Grade 5 students received a very exciting delivery on Tuesday (Jan 17). A representative from Oceans & Fisheries dropped off chum salmon eggs.

Beverly O’Connor gave a brief presentation to the girls, explaining the life cycle of the salmon, and how to care for the eggs.

Within this unit, the students get an opportunity to discuss the ways in which animals reproduce. The girls will experience the salmon life cycle first hand, from incubation to hatching, and learn how temperature plays a role in egg development.

The time it takes eggs to hatch depends on the water temperature. The eggs should hatch around mid-February. Due to the generous support of parents, we have a special cooling unit to keep the temperature between 6-8 Celsius. Warm water would kill the eggs!

Ms. O’Connor also brought the food needed for the “alevins” once they have depleted their food sacs. The girls will keep them as “fry” for 2-3 weeks and then will release them at a designated creek at Spanish Banks.

The Grade 5’s are acting as “Senior Caretakers” and are responsible for twice daily monitoring of the tank. They will also do the release at Spanish Banks. The Grade 2’s are called “Junior Caretakers” and they will use their acute observation skills to notice any changes and catch things that were missed.