Beamline for Schools – Be a scientist!


Did you ever wonder what it is like to be a scientist? If you’re up for a challenge, the BL4S competition is your chance to experience it. Any high-school student from all around the world can join the adventure. Jump into the world of particle physics and think of a simple and creative experiment.


Who is eligible?

The competition is open to teams of high-school students from all around the world. The winning teams are invited to a particle physics accelerator to run their experiment. Teams must have at least five students with at least one adult team coach, but there is no upper limit to a team’s size (although just nine students and two coaches per winning team will be invited to the experimental facility). Teams may be composed of students from a single school, or a number of schools working together. Take part in this once-in-a-lifetime opportunity!


Which experiments can be proposed?

Your team is totally free with respect to the experiment that you propose as long as it does not rise any safety concerns. The technical feasibility will be an important criterion for the selection of the winners. We know that judging what is feasible and what is not may be difficult for you. Refer to this support document for information.


When is the deadline for the next competition?

The deadline for 2021 is midnight CET on April the 15th 2021. You can already pre-register your team, or directly submit your proposal!



Please first read our FAQs. Most questions we receive are already answered in there.

See our national contacts for several countries to get help in your language. Join our BL4S Facebook group and discuss with like-minded from all around the world.

More questions? Contact us directly via