Holy Cross students test hypotheses at science fair

The complete group of Holy Cross Science Fair Grand Prize winners. Photo courtesy of Holy Cross Regional Catholic School
Sugar solubility was studied by fourth graders Anna Marie Patti and Kelly O'Connor. Photo courtesy of Holy Cross Regional Catholic School

It was all about SCIENCE on Thursday, Jan. 9, at Holy Cross Regional Catholic School.

Sugar solubility was studied by fourth graders Anna Marie Patti and Kelly O’Connor. They hypothesized that sugars with bigger particles would dissolve less that sugars with smaller particles. Their results showed that sugars with more additives dissolve less than sugars without additives.

Fifth grader Emma Getts used dolls and weights to test how a gymnast will do routines on a bar in her experiment “Let’s Get Swinging!”

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Does heat help magnets to pick up more paperclips? The answer to the question posed by Billy and Gabriella Yacovelli was “No!” The third graders determined that as the temperature increases, fewer paperclips were picked up by the magnets.

If a fiber optic cable is wrapped around different sized dowels, decreasing the diameters of the dowels, then the amplitude and frequency response will decrease. Cameron Gonteski, eighth grade, found her hypothesis to be partially correct. Her results proved that when a fiber optic cable was bent tighter around a dowel, the amplitude decreased. The frequency input was the same as the frequency output, and did not change. As the frequency was increased, the amplitude increased.

Seventh graders A.J. Williams and Julian Torres tested the Bill James Pythagorean Theorem of Baseball. The theory, according to www.BaseballReference.com, is “based on the idea that runs scored compared to runs allowed is a better indicator of a team’s (future) performance than a team’s actual winning percentage.” The boys discovered that the Bill James Function of Baseball gave an accurate and approximate answer, correctly predicted wins for 33 1/3 percent of the baseball games for the teams, including the Boston Red Sox, New York Yankees and Philadelphia Phillies, from 2004-2012.

Sixth graders were required to participate in the annual Science Fair. The winner representing that class was Catherine Mannato who studied Super Surface Tension of Water. Catie predicted that if salt and detergent are added to water, and when the temperature of the water decreased, then the surface tension of water will increase. However, she learned that when the temperature of water decreased, surface tension increased. Adding salt and detergent did not increase the surface tension of water. Colder water had more surface tension than warmer water.

Holy Cross thanks the faculty, parents, and judges for supporting this event.

All grand prize winning projects are on display at Holy Cross Regional Catholic School, available for viewing on Sunday, Jan. 26, from 10 a.m. to noon, at the Annual Open House. Holy Cross is located at 701 Locust Street, Collegeville, PA.

www.holycrossregionalschool.org. Call for more information (610) 489-9434.