Students took their science project to Westminster as they aim to scoop a £15,000 prize.
A group of students from Sutton Grammar School presented their Ocean Drifter to Sutton and Cheam MP Paul Burstow on February 6.
The design, which will measure ocean wave amplitude and wavelength when it is deployed into the North Atlantic, forms part of the school's entry as finalist into this year's Rolls-Royce Science prize.
If the school wins, it will collect £15,000 pounds prize money and a day out with the Red Arrows.
A trial run for the project will take place on April 6 just off the coast of East Anglia.
Mr Gordon Ironside, Headmaster at Sutton Grammar, said "Our pupils excel across the curriculum but it is great to see some national recognition of our achievements in science."
The project, when released, can be followed on twitter daily at @sgsphysics or via their website: poseidon.sgsphysics.co.uk/Home.html.
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