In the “Colors of Chemistry” experiments, students used shaving cream and food coloring to “tie dye” pieces of paper. Students also used milk, food coloring and dish soap to make the color in the milk move around. (UWM Photo/Elora Hennessey)
Students try out the “Colors of Chemistry” experiments. (UWM Photo/Elora Hennessey)
Another view of the shaving cream tie dye experiment. (UWM Photo/Elora Hennessey)
Krystyna Williams, chemistry & biochemistry laboratory manager, removed waste from an experiment on “glowing chemistry.” In the demonstration, luminol, which is used in crime scenes to identify where biological substances are present, was made to glow. This batch had just stopped glowing. (UWM Photo/Elora Hennessey)
Students took time in a breakout activity to solve chemistry-based puzzles to unlock a box containing a prize. (UWM Photo/Elora Hennessey)
This demonstration uses a gel of ethanol and calcium acetate. When the gel was lit on fire, a compound called strontium chloride was sprinkled on it. When this burns, the resulting flame is red in color. (UWM Photo/Elora Hennessey)
In this demonstration, copper sulfate was used instead of strontium chloride, producing a green flame. (UWM Photo/Elora Hennessey)
Several hundred middle and high school students came to UWM March 31 for a STEM Expo, where they got to conduct experiments to learn about chemistry, and also toured campus, visited research labs and sat in on lectures.
The event came a day before some 1,200 students competed in the Wisconsin Science Olympiad.
“This was really cool,” said Connor Jacobson, a senior at Beloit Turner High School.
