President Michael D Higgins has officially opened the 2018 BT Young Scientist and Technology Exhibition at the RDS in Dublin.
More than 1,100 students will showcase 550 projects during the four-day event, with the overall winner due to be announced on Friday evening.
Now in its 54th year, the BT Young Scientist and Technology Exhibition began life as a science fair set up by Dr Tony Scott and the late Fr Tom Burke in the early 1960s.
Since then, it has grown into one of the largest and best known student science exhibitions across Europe.
A total of 2,031 projects were entered into this year's exhibitionand the best 550 have been chosen to present their work.
They will also compete to take home one of the more than 100 prizes on offer.
Judging begins later today and each project will be examined by a judge a minimum of three times.
The overall winner will take home the coveted title and perpetual trophy, but also a cheque for €7,500 and a trip to Bletchley Park.
They will also get an opportunity to represent Ireland at the 30th EU Contest for Young Scientists.
The public can visit the exhibition from tomorrow through to Saturday and as well as viewing the projects, there will be 20 shows per day for visitors to enjoy, as well as the RDS Primary Science Fair.
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