Two brothers who are taught by their parents at home have scored As in science GCSEs at the ages of eight and 10.
Bhavik Pattani, nine, wants to be a pilot
Hamza Riaz and his younger brother Sef, from Bristol, are among several young children to pass GCSEs this year. They were awarded As in double science.
Ziana Metha, who is eight and from north London, passed a GCSE in ICT with a grade C.
And an 11 year old from west London has been awarded an A* in maths.
Daniel Jianoran is thought to be one of the youngest to achieve that grade.
The brothers from Bristol sat their exams at The City Academy in Lawrence Hill, Bristol.
Their mother Shazia Riaz who works for the police authority, said the boys were
"delighted" as they had expected to get Bs and Cs.
"They have a real aptitude for science," she said.
Mr Riaz, 41, a charity project manager, said: "The school gave us a lot of
help and project work to get on with. Without the school we couldn't have done
it. It's a great relief and was a lot of hard work."
The boys attended primary school but their parents were not happy with their education and decided to work part-time and teach them at home.
The boys want to celebrate their exam success with fast food meals.
Hamza, 10, said: "I'm excited and didn't expect to do
this well. The exams were very hard. I'm very pleased."
Ziana Metha sat her ICT exam at the age of seven.
"I like playing with computers," she said.
She and Daniel Jianoran both studied at Ryde College, private tutorial centre near Watford, in Hertfordshire.
Nine-year-old Bhavik Pattani, who scored a C grade in ICT, also studied there.
"I feel like I'm quite proud of myself for doing it," said Bhavik.
"I want to learn more about computers.
"When I grow up, I want to be a pilot and I want to learn more and go on to
do an A-level in computing, until I'm a professional, because it will help for
controlling the plane and flying."
A sports fan, he says he enjoys tennis and golf as well as playing football.
He plans to have a party with friends to celebrate his