A HORSHAM College year 12 student has challenged 100 students and teachers to donate blood.
Tim Carter is leading the charge for the college community to donate blood at the Red Cross's Horsham branch.
Sixteen students have already donated, while another 12 people have signed up for the challenge.
Tim said giving blood was an important way to make a difference in the community.
He said the college hoped to top a list of Wimmera schools with the most donors.
"The list of people wanting to donate is building all the time, which is good," he said.
"We are in front of all the other schools now, but we have to keep donating.
"Donating blood gives back to the community because you learn about who you are helping and how many people you can help."
Australian Red Cross Blood Service spokeswoman Carol Barnden-Bond said it was great to see people eager to save lives.
She said one in three Australians would need blood in their lifetime.
"By donating as part of a school group or program these students are beginning a life-saving habit early on," she said.
"Normalising blood donation, particularly for younger generations, is a fantastic way for them to become regular donors and continue this routine for the rest of their lives.
"Students, especially VCE students, are incredibly busy so it's fantastic to see them able to set aside the time to save lives."
Ms Barnden-Bond said people could book an appointment to donate blood by calling 13 14 95.