With the help of some liquid nitrogen, Tracy Halmi, senior lecturer in chemistry and the Chemistry Day event’s coordinator, pours a stream of cool, white smoke into a beaker and, later, up the center aisle of the lecture hall in Otto Behrend Science Building at Penn State Erie, The Behrend College.
Tracy Halmi, senior lecturer in chemistry, demonstrates an oscillating reaction, which changes the liquid’s color from black to purple to white to orange during Penn State Behrend’s Chemistry Day 2009.
Two high school students competed in Chemistry Idol — collaborating on "We’re off to see the wizard…" after inhaling helium-filled balloons. Thirteen high schools and 144 students from Pennsylvania and New York attended Chemistry Day this year.
Sulfur hexafluoride, a substance six times more dense than air, allows the boat to float in mid air. Halmi admitted this was the first time she and her team successfully carried out this experiment.
Jerry Magraw, senior laboratory technician, perfects his evil laugh with the help of sulfur hexafluoride — but first warned not to try this at home.
This Ruben’s Tube displays the opening riff of AC/DC’s classic “Shook me all night.” The flames adjust according to the sound’s frequency.
Tracy Halmi, senior lecturer in chemistry, wraps up the morning’s first Demonstration Extravaganza by showing how different types of salt produce a range of colored flames, including orange, green, purple and pink. Her personal favorite is strontium, which yields a deep red flame.
Students competed in two experiments throughout the day to determine the 2009 Chemistry Day trophy winner. Students from Fairview High School earned top honors; their winning team was JB3 (J B Cubed).