Now in its second year, the STEMFest is intended to highlight the importance of real-world math, science and engineering problem solving among students in grades 5 through 8.
More than 50 students took part in the event which is non-competitive.
The students still had an opportunity to showcase their ideas in front of judges, many of them local high school teachers.
STEM divisions included scientific research, engineering design, robotics and a "maker" section for all the inventors in the area.
"Our students designed and carried out experiments on a host of topics including, plant life, earth science, and the reaction of gummy bears in liquid," said Copper Beach Middle School Science Teacher Judy Toledano.
Students from all over the county who attended learned about wolf conservation, the new Tappan Zee bridge, and participated in demonstrations and other STEM-related activities.
"Our bright outlook for the future is due to the excitement generated by these students, and in turn, they reinvigorate our love for teaching science," said Toledano, the science club advisor.
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