Engineers from Cedar Rapids presented to all North Polk fourth-, fifth- and sixth-graders on May 5. "The Rockwell Collins Roadshow" is a fast-paced, interactive presentation. The engineers showed students that science, technology, engineering and math can lead to exciting and interesting careers.

Rockwell Collins engineers design equipment that functions in extreme climates. Students saw how a rubber ball, balloons and marshmallows were affected by exposure to the extreme cold of liquid nitrogen. The engineers exposed balloons to several harsh environments, such as heat and a sharp object. After modifying the environment, they were able to prevent the balloon from popping.

Students watched a variety of activities that appeared to be magic. Although it looked like magic, the engineers explained that magicians won’t tell their secrets. Science could explain how all the tricks happened.

The engineers were invited to North Polk as part of the Extended Learning Program’s focus on engineering for this school year.