The first group consists of Mikaela Nicklasson, Felix Karlberg and Linnea Gren.
They have researched how pea seeds and their growth are affected if they are irradiated.
They have irradiated pea seeds with different doses at the University Hospital in Linköping's radiation department and then examined different phenotypes in the plants.
- It is unclear what chance we will have in the SM.
But we've had fun and we've done a lot independently.
We have a chance, but we don't know how the others who reached the final have done, says Felix Karlberg.
Can Smaug fly?
The second group has investigated whether the dragon Smaug from the Hobbit films could have flown in real life.
- We compared him to the species that exist today and then we did a strength analysis of him and then we produced a model that we tested in a wind tunnel at KTH, says William Hellander.
The third group has investigated whether it is possible to produce a synthetic tissue model that can be used when testing a cancer drug.
Among other things, they have produced various gelatin models as a synthetic skin model and studied a fluorescent drug.
- There will be very high competition in the competition.
Regardless of who wins, I think they will deserve it very much, says Emma Leifler.
From the county, there are also three contributions from Katedralskolan in Linköping selected for SM, as well as a contribution from Curt Nicolin high school in Finspång.
In the clip, you can hear more about the students' research and why they think that their class in particular received three contributions to the Research SM this year.