KEPNOCK State High School gave students from the nine feeder primary schools in the region a taste of life in the "big fishpond".
Children from grades 5, 6 and 7 from the Coral Coast cluster got involved in a range of science activities over two days under the Academic Challenge and Excellence program, including biology where they practised dissecting fish.
Indruh Lawrence, 12, from Kalkie State School, said the experience of cutting up the fish for science rather than bait was something new and exciting for him.
"It was great, I learnt about the swim bladder of a mullet," Indruh said.
"We learnt that fish suck air in and the swim bladder goes up and blows air out as it goes down like a balloon.
"The swim bladder stunk - it was very bad."
Indruh said the day was full of learning and he found it all interesting.
Matthew Stark, 12, from Woongarra State School also said dissection was his favourite activity.
"The heart was good to see," Matthew said.
"I'm glad I'm not squeamish."
The two-day program had over 50 children participate, after meeting the required standard.
To be included in the Kepnock ACE science program children in the last year of primary school had to receive a credit or higher in science to be accepted.