Sturgeon Creek students had their annual science fair this past week, with 75 imaginative presentations at different levels.
“It is hard to make a decision on who would get awards to advance to the next stage of the event,” noted teacher Darcy Jack, referring to the fact there are so many excellent displays.
Grade eight student Kari McLean experimented with different cleaning products to see which one tackled bacteria the best (it was the Fantastik—just as she had guessed going in).
Meanwhile, fifth-grader Jared McQuaker tested out different types of hearing protection—earmuffs, earplugs, and canal caps—to see which one reduced sound most effectively.
He predicted earmuffs would be best because they cover the whole ear, followed by earplugs because they are inserted directly into the auditory canal.
Canal caps would be third because they only cover the opening to the auditory canal.
“I made the test model with wood, a styrofoam head, and a sound level meter, then tested each of the hearing protection with four different sound sources.
“This was recorded, with results in spread sheets and graphs,” he added.
After the tests were done, McQuaker was surprised that canal caps came in first place, having reduced the sound level by an average of 14 decibels
In last place came earmuffs, which reduced the sound level by the average of 10 decibels.
“Based on my experiment, I decided the canal caps were the best,” he noted.
Matt McQuaker was eager to discover whether a type of gasoline with a higher octane level will burn for a longer amount of time, or give off more emissions than one of a lower octane level.
After researching different avenues involved, he believed that a type of gasoline with a higher octane level will both burn longer and have less emissions than a type with a lower octane level.
“My experiment shows which types of gasoline are best to buy, both environmentally and economically,” said McQuaker.
Vicki Ogilvie displayed her kindergarten class project, “Stain and Brush,” experimenting with the following: plain juice, milk, and Coke.
She was proud how well the whole class had taken time to prove how each stain can be brushed out. The project was not going anywhere, she admitted, but gave all the students the knowledge and experience to work on later projects.