Pupils presented their science inventions to a panel of Dragons' Den judges for an inter-school competition.
Pupils took part in heats at BMAT primary schools, before finalists came together virtually.
They recorded presentations to explain their Innovation for the Future, showing drawings or carrying out demonstrations with prototypes.
Inventions included a happiness machine, a voice activated computer, a blue blood Covid-19 vaccine, a puzzle for blind people and an automatic door handle.
Cameron at Magna Carta Primary Academy in Stansted, was the winner from Reception and year one, with his invention the Cami Cushion.
Marios Solomonides, headteacher at Magna Carta, said: “The competition promoted innovation and aspiration, with an emphasis on science and technology.
“We asked pupils to look for a problem or an issue and to invent a solution. The important thing was for children to think critically, experiment and take positive risks.
“Enterprise and aspiration drive our curriculum at Magna Carta, therefore this competition fitted very well with our ethos.”
Other winners were:
Year 2 / 3 – Dylan and Riley, Year 3, Roydon Primary Academy, who invented Mike, The Microplastic Machine
Year 4 / 5 / 6 – Carys, Year 5, Freshwaters Primary Academy, who invented a small portable device for blind or partially sighted people to wear to support with everyday life, such as choosing clothing and crossing roads safely.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here