Jenny Bruno’s fifth-graders at Oak Grove Primary School were challenged to reduce their carbon footprint after studying the human impact on the environment.

Students wore crazy hair and hats to help raise nearly $500 to begin an upcycling or recycling program at Oak Grove Primary.

Using the Web-based Terracycle program, which turns trash into other products, students set up an upcycling center in the school’s cafeteria and in hallways to help with the collection of items.

Terracycle upcycles items such as lunch kits, chip bags, drink pouches and cereal bags, Bruno said in a news release.

“Not only does this program help reduce our carbon footprint, the program in turn for the goods sends funds to the school,” Bruno said.

The funds will be used to purchase new library books.

“The students are very excited about reducing their carbon footprint and keeping these items out of our local landfills,” Bruno said.

After a month of collection, the students collected 573 lunch kits, 1,216 chip bags, 1,835 drink pouches and eight cereal bags.