Hundreds of aspiring scientists showed off their skills and sought out top honors Sunday at the New York City Science and Engineering Fair.
More than 500 high school student projects are on display at City College in Harlem.
Topics range from honey bees to nanotechnology and its application in society.
"It can help in creating solar panels. It can help creating biomarkets for diseases. It can do a lot of stuff," said participant Sunny Aggarwal.
"It really, really gives the students an opportunity to take a really good look at a topic of interest and explore it and really understand it and make it living, make it more than what they read in a textbook," said
The top 150 projects will move onto the finals later this month.
Winners from that event will head to Pittsburgh for the Intel International competition in May.