All eight of them chose to face the kids, and they had to answer lots of questions from the pupils about what they did.
One of the pupils, 15-year-old Emily, told CBBC Newsround's website: "They all took it on board. Some of them did change the way they thought about speeding.
"It'll help me too when I learn to drive, I'll remember it, so I'll change the way I drive."
The scheme is part of the school's Duke of Edinburgh Award programme, and in one section called service, kids often do things like this to help the community.