A Jericho High School student is among the top winners in an international high school science fair.

Lilly Horowitz, a senior, won a First Award of $6,000 last month in the Cellular and Molecular Biology category at the 75th Annual International Science and Engineering Fair, which was sponsored by the biotechnology company Regeneron and administered by the nonprofit Society for Science.

This year’s competition featured nearly 1,700 young people from more than 60 countries, regions and territories, according to Regeneron.

Horowitz’s project explored how ribonucleic acids in maize “trigger specific chemical changes to silence jumping genes that are known to cause cancer and neurological disorders in humans,” competition officials said.

“I was shocked, excited and proud of myself at the same time,” Horotwitz said of winning. “It was an honor to share my project and interest in genetics with other high schoolers and professionals from around the world.”

Other local winners and their high schools, prizes and categories: Dora Fields, Northport, Second Award ($2,400), Plant Sciences; Isabel Gonzalez and Lucienne Keyoung, Manhasset, Second Award ($2,400), Chemistry; Samyra Mahiba, Jericho, Second Award ($2,400), Materials Science; Ashka Shah, Jericho, Second Award ($2,400), Biochemistry; Erin Wong, Great Neck South, Second Award ($2,400), Computational Biology and Bioinformatics; Gary Han, Syosset, Third Award ($1,200), Physics and Astronomy; Benson Huang, Half Hollow Hills West in Dix Hills, Third Award ($1,200), Biomedical Engineering; Hailey Richman, Plainview-Old Bethpage JFK, Third Award ($1,200), Behavioral and Social Sciences; Mehek Sawhney, Commack, Third Award ($1,200), Microbiology; and Ryan Tae, Jericho, Third Award ($1,200), Energy: Sustainable Materials and Design.

Three Long Island students have been named first-place winners in the 37th Annual World Food Essay Contest coordinated by the Amityville-based nonprofit Stop World Hunger. This year’s contest, which received 489 entries, asked participants to respond to the question, “How can ending poverty stop world hunger?”

The winners, their schools and divisions: Olivia McGinty, Our Lady of Victory School in Floral Park, primary division (grades 1-3); Cavanaugh Hutchinson, St. Mary School in East Islip, junior high division (grades 7-8); and Isa Canales Alvizuri, Sacred Heart Academy in Hempstead, high school division (grades 9-12).

For winning, they received $100 savings bonds.

A team from The Stony Brook School placed sixth nationwide and won $4,000 in the American Rocketry Challenge, an annual competition sponsored by the Aerospace Industries Association and National Association of Rocketry that requires participants to build rockets meeting specific parameters.

Stony Brook’s team, BrookX, qualified for the national finals by building a model rocket that safely carried two eggs to an altitude of 790 feet and stayed airborne for between 41 and 44 seconds before returning to the ground, according to competition officials.

This year’s challenge included a record 1,001 teams, with the top 100 competing last month in Virginia, competition officials said.

Four Long Island teachers — Christina Delaney of South Bay Elementary School in West Babylon, Maria Portal of Longwood High School in Middle Island, Rachel Pulewitz of Michael F. Stokes Elementary School in Levittown and Laurette Roddin of West Side Elementary School in Syosset — were winners in the ninth annual Above and ‘BEE’yond Teacher Essay Contest coordinated by Applebee’s restaurants.

For winning, the teachers received $500 to enhance their classrooms for next school year, as well as an end-of-year celebration with their students at a local Applebee’s.

The contest asked students to submit essays explaining how their teachers went “above and beyond,” the company said.